Two tactical shotguns, one black and one camouflage, on a table with targets in the background.
Analytics and Reports, Shotgun Analytics

Comparative Firearm Reliability and Performance Analysis: Military Armament Corporation MAC 1014 vs. Orthos Arms Raider S4

Executive Summary

The expiration of the patents surrounding the Auto-Regulating Gas-Operated (A.R.G.O.) system initially developed for the United States military has led to an influx of imported clone shotguns into the North American tactical firearms market. Within this sector, two platforms have emerged as notable options occupying different pricing and performance tiers: the Military Armament Corporation (MAC) 1014, imported and distributed by SDS Arms, and the Raider S4, imported, modified, and distributed by Orthos Arms. While both firearms trace their primary metallurgical and geometric origins to manufacturing facilities located in Turkey, they represent divergent approaches to quality control, aftermarket readiness, and out-of-the-box operational capabilities.

The MAC 1014 is positioned strategically as a high-value, entry-level tactical shotgun designed to deliver the baseline functionality of the dual-piston A.R.G.O. system at a lower cost than its Italian progenitor. Targeted primarily at budget-conscious consumers, home defense practitioners, and firearm modification enthusiasts, the MAC 1014 serves as a functional, utilitarian baseline platform. Available in a variety of configurations—including standard polymer pistol-grip, traditional Turkish walnut, and electroless marine nickel—the MAC 1014 requires end-user intervention to achieve optimal reliability. The general consensus dictates that achieving consistent operation necessitates a strict, high-pressure ammunition break-in period alongside potential aftermarket part substitutions to overcome initial manufacturing tolerances and friction points American Rifleman Analysis1.

Conversely, the Orthos Raider S4 is positioned as a premium, turnkey tactical solution designed for professionals, competitive shooters, and enthusiasts who demand immediate performance without the requirement for extensive aftermarket tuning. While the core receiver and barrel components are manufactured overseas, Orthos Arms performs secondary deburring, quality control inspections, and final assembly at their facility in the United States. The Raider S4 is equipped with several proprietary, factory-installed components, including the advanced SHOCK FORCE recoil mitigation system, FIBERTRON LED-illuminated sights, aerospace-grade carbon fiber and Kevlar elements, and custom Cerakote finishes applied to protect against harsh environmental conditions Bauer Precision Specifications3.

The primary comparative thesis of this analysis asserts that while both shotguns share identical mechanical DNA derived from the proven A.R.G.O. architecture, their divergence in final finishing, internal lapping, and factory-included enhancements creates two distinct ownership paradigms. The MAC 1014 requires patience, specific ammunition investments, and aftermarket knowledge from the user to excel, whereas the Orthos Raider S4 leverages a significantly higher initial capital investment to bypass traditional break-in periods, delivering a refined, duty-ready platform upon unboxing.

Reliability and Accuracy

The mechanical foundation of both the MAC 1014 and the Orthos Raider S4 relies on a dual short-stroke gas piston operating system, an engineering design noted for its self-regulating properties and inherent reliability under adverse conditions Outdoor Life Review6. This mechanism operates via two stainless steel pistons situated laterally just forward of the chamber. Upon firing a chambered shell, high-pressure expanding gases are tapped directly from the barrel bore through specifically calibrated gas ports, driving the pistons rearward by approximately half an inch. These pistons strike the forward face of the bolt carrier, transferring the kinetic energy required to unlock the rotary bolt head, extract the spent hull, cock the hammer, and compress the heavy recoil spring housed within the stock tube. Because the system vents excess gas automatically, it is theoretically capable of cycling a wide spectrum of ammunition pressures without manual adjustment Ronin’s Grips Analysis8.

Mechanically, both shotguns exhibit inherent accuracy profiles suitable for tactical applications. Both platforms utilize 18.5-inch 4140 full steel, smooth chrome-lined barrels equipped with Benelli/Mobil pattern choke threads, ensuring consistent shot dispersion and the ability to tune patterns for specific target ranges Xtreme Guns and Ammo Specs5. When utilizing 1-ounce rifled slugs, both platforms are mechanically capable of maintaining standard tactical accuracy parameters, grouping within effective vital zones at 50 yards. The primary differentiator in practical accuracy stems from their respective sighting systems. The MAC 1014 utilizes a standard ghost ring rear sight paired with a white-dot protected front post Sportsman’s Warehouse Listing10. In contrast, the Orthos Raider S4 improves rapid target acquisition via its proprietary FIBERTRON LED front sight. This system utilizes traditional ambient light gathering through fiber optics but features a supplementary, USB-C rechargeable LED to artificially illuminate the aiming post in low-light or variable-light environments Orthos Arms Details3.

The long-term reliability of these gas-operated clones is inextricably linked to internal friction and the physical lapping of machined surfaces. The MAC 1014 relies almost entirely on the end-user to “lap” the internal components through live fire. The manufacturer explicitly mandates a 100-round break-in protocol utilizing high-velocity ammunition, specifying a minimum of 1350 feet per second (FPS) and a 1 1/8 ounce payload MAC Owners Manual13. During this phase, the high port pressures cycle the action, mechanically polishing microscopic burrs left on the receiver rails, the bolt carrier assembly, and within the gas cylinders. If a user attempts to bypass this high-pressure break-in period and cycle standard target loads (e.g., 1145 FPS to 1200 FPS) prematurely, the MAC 1014 may experience failures to eject (FTE) and stovepipes. The lower gas volume generated by target loads is generally insufficient to overcome the friction of the unpolished surfaces combined with the factory recoil spring Ronin’s Grips Maintenance Guide2.

The Orthos Raider S4 effectively circumvents this break-in period through stateside quality control measures. Because Orthos Arms imports the raw components and performs secondary deburring, polishing, and hand-fitting assembly in the United States, the internal friction coefficient of the action is reduced prior to the consumer firing their first shot Reddit Shotguns Forum15. While Orthos still publishes a conservative recommendation for a minor 50-round break-in with 1300 FPS ammunition, users report that the Raider S4 cycles low-recoil tactical loads and standard birdshot reliably straight out of the box Towers Armory Specs17.

Bar chart comparing firearm complaint percentages for MAC

The following table delineates the most common malfunctions associated with the A.R.G.O. clone architecture, mapping specific defect types to their mechanical causes and identifying which platform exhibits a higher historical propensity for each issue.

Malfunction TypeDescriptionPrimary Phase of OccurrenceVerified CausesHistorically Prone Platform
Failure to Eject (FTE) / StovepipeSpent hull fails to clear the action and becomes trapped laterally in the ejection port.Initial Break-In (0-200 rounds)Insufficient gas pressure from low-brass ammunition; excessive internal friction on unpolished bolt carrier rails Ronin’s Grips Analysis2.MAC 1014
Failure to Return to Battery (FRTB)Bolt carrier stops short of fully rotating and locking the bolt head into the barrel extension.Early Lifecycle (0-500 rounds)Weak factory recoil spring tension; lack of proper lubrication on the bolt cam pin eBay Spring Parts2.MAC 1014
Nose-Up Feed JamFresh shell releases from the magazine tube but binds at an upward angle on the shell lifter.Any PhaseDeformed or weak factory magazine spring; tolerance stacking in the shell stop latch preventing smooth release21.MAC 1014
Magazine Tube BindingRounds become stuck laterally within the magazine tube, failing to feed onto the lifter under spring tension.Out of the BoxOver-torqued forward grip screws indenting the aluminum magazine tube housing during factory assembly Reddit liberalgunowners12.Orthos Raider S4
Light Primer StrikesThe firing pin fails to adequately strike and detonate the primer of the chambered shell, resulting in a click but no discharge.High Round Count (2,000+ rounds)Firing pin spring fatigue over prolonged use; excessive carbon debris accumulation within the bolt carrier channel.Both Platforms

Durability and Maintenance

The core metallurgical foundations of both shotguns are standard for the industry, utilizing T6 7075 hardened aerospace aluminum for the receivers and high-tensile 4140 steel for the barrel assemblies Buds Gun Shop Listing22. Despite this foundational geometry, the long-term durability of micro-components—specifically internal springs, retaining pins, strikers, and shell catches—is an area where imported shotguns face scrutiny.

In the MAC 1014, the factory magazine springs are prone to metallurgical fatigue. When users remove the factory limiter to utilize the full 7-round tube capacity (a common modification), the original equipment manufacturer (OEM) spring occasionally lacks the sustained tension required to push the final two shells onto the lifter reliably, causing intermittent feeding issues eBay Store Data21. Additionally, the hardware securing the MAC 1014’s pre-installed top Picatinny rail sometimes ships from the factory without sufficient thread locker compound. This can cause the rail to loosen under the sustained recoil of 12-gauge slugs, resulting in a loss of zero Reddit Tacticalshotguns20. Notably, the MAC 1014 utilizes a coarser M8x1.25 thread pitch for its stock retention bolt and rail screws, which diverges from the M8x1.0 fine pitch used on genuine Benelli M4s. This represents a tolerance stacking risk for users attempting to force Italian hardware into the Turkish receiver without understanding thread geometry26.

The Orthos Raider S4 features upgraded micro-components straight from the factory. The inclusion of an oversized tactical charging handle, an enhanced oversized bolt release lever, and an advanced flat-blade trigger represent precision CNC-machined parts designed to replace the often cast or Metal Injection Molded (MIM) parts found on base-level clones Bauer Precision Catalog3. Furthermore, the Orthos Raider S4 utilizes baked-on Cerakote finishes applied directly over the aluminum receiver and steel barrel. This ceramic-polymer coating provides an increase in abrasion resistance, chemical resistance, and saltwater corrosion protection when compared to the MAC 1014’s standard black anodization and simple chromate barrel finish Palmetto State Armory Catalog11.

Because both shotguns maintain a high degree of architectural compatibility with the Benelli M4 (with industry analysts citing up to 98% parts commonality), owners of both platforms frequently substitute suspect factory components with premium Italian OEM or American aftermarket parts Ronin’s Grips Top 10 Clones8.

Firearm PlatformOriginal Suspect PartRecommended DIY ReplacementReason for Maintenance Intervention
MAC 1014Factory Magazine SpringWolff Extra Power Magazine SpringThe OEM spring fatigues rapidly under compression, causing failures to feed when utilizing aftermarket 7-round extended tubes Shell Tactical Parts21.
MAC 1014Factory Plastic FollowerFreedom Fighter Tactical FollowerThe OEM plastic follower is prone to binding inside the aluminum magazine tube due to friction and rapid carbon fouling buildup8.
MAC 1014Picatinny Rail ScrewsOEM Screws re-secured with Blue LoctiteFactory screws consistently loosen under heavy 12-gauge recoil impulses, resulting in the loss of optical zero20.
Orthos Raider S4Factory Gas Piston O-RingsViton High-Temperature O-RingsProlonged exposure to high-velocity, high-temperature slug gases can degrade the factory rubber rings over thousands of rounds, causing slight gas leakage30.
Both PlatformsFactory Extractor & Extractor SpringBenelli OEM Extractor AssemblyUpgrading this critical component ensures the positive extraction of expanded, low-quality brass and steel-rimmed target shells, reducing FTE malfunctions29.

Ownership Experience

The subjective shooting experience and physical interaction with the firearm reveal a contrast between the two platforms, highlighting their disparate design philosophies.

The MAC 1014 offers a traditional tactical layout. The standard model features a fixed polymer stock equipped with a rubberized pistol grip and capped with a simple 7/8-inch thick rubber recoil pad American Rifleman Review1. The ergonomics are static. The length of pull (LOP) cannot be adjusted to accommodate shooters with shorter arm spans or professionals wearing thick body armor, and the cheek weld remains fixed, which can complicate the alignment of taller red dot optics. The trigger pull on the MAC 1014 is heavy, measuring 9 pounds and 10 ounces Outdoor Life Review7. Handling the MAC 1014 feels utilitarian; it acts as a rugged tool that prioritizes manufacturing cost efficiency.

Conversely, the Orthos Raider S4 is engineered from the ground up to maximize ergonomic control and shooter comfort during sustained firing schedules. The centerpiece of this experience is the patented SHOCK FORCE Recoil System, which is housed within a fully adjustable carbon fiber or Kevlar-reinforced stock Palmetto State Armory Details3. This mechanical buffer system actively decelerates the rearward travel of the bolt carrier group, absorbing and dissipating the kinetic transfer before it impacts the shooter’s shoulder. Users report that the Raider S4 effectively tames the recoil of heavy 3-inch magnum loads, preventing flinching and allowing for faster follow-up shots Buds Gun Shop Reviews22.

Furthermore, the Orthos Raider S4 discards the standard plastic handguard in favor of a rigid M-LOK aluminum handguard, and it includes an angled, three-piece modular vertical grip Bauer Precision Specs3. This interface allows the shooter to biomechanically lock their support hand into the weapon system, actively driving the muzzle down during rapid strings of fire. Combined with the adjustable cheek pad ensuring optical alignment and the crisp break of the advanced flat-blade trigger, the Raider S4 provides a customized shooting experience that distinguishes it from standard clones Xtreme Guns and Ammo Listing3.

Ownership of a MAC 1014 often involves end-user modification. Because buyers explicitly purchase the MAC 1014 to upgrade it, they frequently encounter the reality of tolerance stacking. Mixing Turkish receiver dimensions with American 922(r) compliance parts (such as Mesa Tactical stocks or Midwest Industries aluminum handguards) and Italian Benelli trigger groups can result in binding actions, overly stiff cross-bolt safeties, and misaligned optical rails Brownells Product Reviews2. The Orthos Raider S4 circumvents these modification risks by arriving modified. Because the Cerakote application, M-LOK rails, extended manual of arms controls, and enhanced recoil systems are hand-fitted and subjected to strict quality control checks at the Orthos facility prior to distribution, the risk of end-user tolerance stacking is eliminated.

Warranty and Support

The difference in corporate support structures, warranty coverage, and repair turnaround times impacts long-term consumer confidence and the total cost of ownership.

Military Armament Corporation, operating under the corporate umbrella of SDS Arms, backs the MAC 1014 with a 1-Year Limited Warranty covering defects in materials and original workmanship. This initial coverage theoretically transitions into a Lifetime Service Plan, though this plan explicitly excludes normal wear items such as recoil springs, grips, and cosmetic finishes MAC Warranty Information37. Executing a warranty claim requires the formal submission of a Return Merchandise Authorization (RMA), and SDS Arms explicitly states an expected repair turnaround time of 3 to 4 weeks SDS Arms RMA Portal38. While historically reliable in honoring valid claims for the MAC 1014, SDS Arms has recently suffered from supply chain volatility regarding proprietary parts. In a move that caused concern within the consumer base, SDS ended warranty support for their legacy MAC pistols and Spandau shotguns due to severed relationships with their Turkish manufacturing partners. This action injected skepticism into the market regarding the long-term viability of their Lifetime Service Plan SDS Arms Press Release39. Furthermore, SDS warns users that customizing the firearm with aftermarket parts may void the warranty entirely if damage occurs SDS FAQ41.

Orthos Arms addresses the persistent “cheap import” stigma by providing the consumer with highly responsive customer service. The Raider S4 is backed by a Lifetime Warranty Orthos Arms Brand Overview3. Consumers consistently report fast turnaround times. In one documented case involving a bolt failure, the user shipped the firearm to the Orthos facility; Orthos technicians replaced the gas pistons, charging handle, bolt assembly, and pistol grip, and returned the fully repaired firearm to the user within a one-week turnaround time Reddit Shotguns Forum17. Similarly, when another user reported magazine tube binding due to an over-torqued factory grip screw, Orthos customer service overnighted an upgraded carbon fiber magazine tube to the customer without requiring the weapon to be shipped in Reddit liberalgunowners12. This responsive support mitigates the risk profile typically associated with purchasing Turkish shotguns.

Voice of the Customer (VoC)

Synthesizing thousands of individual data points and reviews from high-traffic firearms communities (including Reddit’s r/Shotguns, Pistol-Forum, and GlockTalk) reveals contrasting consumer profiles and debates surrounding these two platforms. By filtering out unverified praise and isolating feedback exclusively from high-round-count users, two distinct consensuses emerge regarding market value and operational trust.

The MAC 1014 Consensus: The median sentiment regarding the MAC 1014 is generally positive, provided the consumer actively manages their expectations and treats the firearm as a project rather than a finished product. High-round-count users frequently note that the MAC 1014 is a highly viable clone, noting that once the 100-round high-brass break-in period is complete, the shotgun runs reliably with a wide variety of ammunition Reddit Shotguns Debate43. The dominant debate surrounding the MAC 1014 involves the financial logic of the “Builder’s Path.” Critics argue that by the time a user purchases the base $420 MAC 1014, adds a Mesa Tactical stock, installs a Midwest Industries aluminum handguard, purchases Wolff springs and Benelli extractors, and spends money on the mandatory high-brass break-in ammunition, they have spent nearly $1,100 on a clone that still lacks the secondary resale value of a genuine Benelli M4 Reddit Orthos vs Benelli25. Proponents counter that spreading the financial cost out over time allows budget-restricted consumers to access top-tier tactical geometry.

Synthesized VoC Statement (MAC 1014): “The MAC 1014 represents an exceptional value, but it is not a finished, duty-ready product straight out of the box. You must aggressively clean out the factory grease, apply high-quality oil, rigidly adhere to the 1350 FPS ammunition break-in protocol, and expect to replace the magazine spring early in its lifespan. If you are willing to put in the mechanical equity, it is highly reliable.”

The Orthos Raider S4 Consensus: The Raider S4 faces initial skepticism online due to its premium price tag, an MSRP that encroaches on the territory of proven European titans like the Beretta 1301 Tactical and the base model Benelli M4 Reddit Shotguns Elite Thread12. Forum purists frequently dismiss it as an overpriced clone. However, empirical reviews from verified owners consistently counter this narrative. Users who actually own and utilize the Raider S4 in 3-Gun competitions or tactical courses report excellent reliability, praising the SHOCK FORCE recoil system and the impeccably smooth, polished action Reddit Raider S4 Thread17. The consensus among verified owners is that attempting to duplicate the Raider S4’s exhaustive feature set on a genuine Benelli M4 (including custom Cerakote, M-LOK handguards, a match-grade trigger, a recoil-reducing stock, and LED fiber optic sights) would push the total financial investment well past $3,500 Reddit Orthos Raider Discussion17.

Synthesized VoC Statement (Orthos Raider S4): “There is skepticism regarding its import origins, but the actual performance on the range is excellent. It cycles low-recoil birdshot from the beginning, the recoil mitigation is highly effective, and Orthos’ customer service is very responsive. It is a turnkey solution for those who want the classic M4 aesthetic combined with modern AR-15 style modularity.”

Quantitative Ratings

The following comparative ratings reflect an aggregation of mechanical specifications, metallurgical properties, and verified consumer performance data gathered across high-volume firing schedules.

Evaluation MetricMilitary Armament Corp MAC 1014Orthos Arms Raider S4
Reliability (Post Break-in)8.5 / 109.5 / 10
Accuracy (Mechanical/Sights)7.0 / 109.0 / 10
Durability (Component Quality)6.5 / 108.5 / 10
Maintenance (Ease of Service)8.0 / 108.5 / 10
Warranty & Support Structure6.0 / 109.5 / 10
Ergonomics & Handling6.5 / 109.5 / 10
Value Proposition9.0 / 108.0 / 10
OVERALL COMPOSITE SCORE7.3 / 108.9 / 10

Conclusion and Use Case Analysis

Drawing a definitive conclusion requires closely contextualizing the prospective buyer’s intent, capital liquidity, and mechanical aptitude. From a strict performance, durability, and ergonomic standpoint, the Orthos Arms Raider S4 is the higher-scoring firearm. It scores significantly higher overall (8.9 vs 7.3) because Orthos has addressed the inherent flaws commonly associated with imported clones. By performing stateside deburring, installing premium CNC-machined components, integrating advanced recoil physics, and backing the product with highly responsive customer service, Orthos delivers a tactical shotgun that requires no user modification.

However, the MAC 1014 remains a strong option for entry-level value. It provides the baseline A.R.G.O. operating system and tactical geometry at a highly accessible price point.

Specific Use Case Excellences:

  • Home Defense (Budget-Restricted): The MAC 1014 is a strong competitor in this specific scenario. At an average street price of $415, an individual can acquire the shotgun, a tactical flashlight, a budget red dot sight, and a full case of defensive buckshot for less than half the cost of an Orthos Raider S4. Once properly broken in with high-velocity ammunition, its mechanical reliability is sufficient for localized, low-round-count defensive scenarios where budget is the primary constraint Reddit Tacticalshotguns46.
  • 3-Gun Competition / Tactical Training: The Orthos Raider S4 is highly suited for this high-stress use case. The SHOCK FORCE recoil system allows for fast follow-up shots on target, minimizing muzzle climb. The enlarged loading port, oversized controls, and the ability to cycle low-recoil 1200 FPS target loads reliably out of the box are requirements for competitive shooters navigating high-volume stages Reddit Shotguns Reviews5.
  • Gunsmithing / Modification Hobbyists: The MAC 1014 is the clear winner for tinkerers and mechanical enthusiasts. Its high architectural compatibility with the Benelli M4 aftermarket allows hobbyists to slowly upgrade the shotgun over time, learning the intricacies of firearm mechanics and parts fitting Ronin’s Grips Clone Guide8.
  • Harsh Maritime Environments: The MAC 1014 Marine (with its electroless nickel coating) or the Orthos Raider S4 (with its baked-on Cerakote finishes) both excel here, outperforming standard blued or phosphate shotguns in resisting salt-spray corrosion and moisture degradation Bauer Precision Catalog3.

Pricing and Availability

Research Phase & Average Street Price:

Based on a cross-section of active online vendor inventory, the MAC 1014 carries an average street price of $415.00, reflecting its market position as a high-value import. The Orthos Raider S4 base model carries an average street price of $1,400.00, though base models are frequently found discounted from primary vendors for as low as $699.99. The custom-finished Orthos Elite models carry an average street price of $1,699.99.

Vendor Search Results (Listings at or below Average Street Price):

Methodology

This comparative analysis was conducted through an aggregation and synthesis of engineering data, manufacturer technical specifications, and longitudinal consumer feedback. The data-gathering process prioritized signal-to-noise filtering, discarding isolated, unverified anecdotes and emotional brand loyalty that frequently distorts the objective evaluation of Turkish-manufactured firearms. Claims regarding defect trends, specific malfunction types, cyclic reliability, and warranty experiences were cross-referenced against high-traffic firearms communities, including Reddit’s r/Shotguns, r/Tacticalshotguns, and Pistol-Forum, alongside verified vendor reviews.

Data Constraints

A defect or performance characteristic was only included in the quantitative ratings and malfunction mapping of this report if it was corroborated by multiple, independent user accounts spanning different production batches and geographic locations. Technical claims regarding gas system operations, aftermarket parts compatibility, and thread pitches were verified directly against established armorer data for the Benelli A.R.G.O. system architecture to ensure baseline accuracy throughout the report. Constraints inherent to crowdsourced data, such as survivorship bias in malfunction reporting, were mitigated by weighting high-round-count reviews (1,000+ shells fired) more heavily than initial unboxing impressions.

Note: Vendor Sources listed are not an endorsement of any given vendor. It is our software reporting a product page given the direction to list products that are between the minimum and average sales price when last scanned.

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  40. Warranty Service Update for Spandau Over/Under Shotguns – SDS Arms, https://sdsarms.com/news/warranty-service-update-for-spandau-overunder-shotguns/
  41. FAQs & Owner’s Manuals | Product Support – SDS Arms, https://sdsarms.com/faq-manuals/
  42. Orthos Raider S4 : r/guns – Reddit, https://www.reddit.com/r/guns/comments/1rgmwg2/orthos_raider_s4/
  43. Least Bad Turknelli? : r/Shotguns – Reddit, https://www.reddit.com/r/Shotguns/comments/1t2sgci/least_bad_turknelli/
  44. Shotgun advice: MAC Model 1014 : r/liberalgunowners – Reddit, https://www.reddit.com/r/liberalgunowners/comments/1q0s4hb/shotgun_advice_mac_model_1014/
  45. Is the Elite version of the Orthos Raider S4 worth it? : r/Shotguns – Reddit, https://www.reddit.com/r/Shotguns/comments/1kzx0uv/is_the_elite_version_of_the_orthos_raider_s4/
  46. Thoughts on Orthos over Benelli? : r/Tacticalshotguns – Reddit, https://www.reddit.com/r/Tacticalshotguns/comments/1o2zvcv/thoughts_on_orthos_over_benelli/
  47. Orthos Raider S4 for Sale | Buy Online at GunBroker, https://www.gunbroker.com/orthos-raider-s4/search?keywords=orthos%20raider%20s4&s=f&cats=3105
  48. MAC 1014 Marine – 12GA Semi-Auto Tactical Shotgun – Military Armament Corporation, https://milarmamentcorp.com/mac-1014-marine/
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  50. SDS Imports Military Arms Corp MAC 1014 12 Ga. 3 in. Chamber 18.5 in. Barrel 5 Rnd – Exchange, https://www.shopmyexchange.com/sds-imports-military-arms-corp-mac-1014-12-ga-3-in-chamber-18-5-in-barrel-5-rnd/4023851