Tag Archives: M4

Computer Animation Video: This Does A Great Job Showing How Both An AR and M16 Operate

Folks, I always tell people you need to understand the basic mechanics of how your weapon operates. I’ve posted some slick videos in the past on how the AK-47, Dragunov. Glock pistol, AK-74, and AH-94 rifles operate [by the way, clicking on their names will take you to the blog post for each] and now I just found this one that very clearly illustrates how an AR-15, M16 and M4 operate. The author, Thomas Schwenke, goes through everything and explains both the semi-automatic and fully automatic mechanisms.

The video has some amazing detail such as this illustration of the M16’s full-auto fire control group.

One thing I like is that there is a narrator explaining what is going on plus they also label key parts – many animations just show the components without either a narrator or labeling.

So if you like AR rifles and pistols, you really need to watch this exceptional video. Kudos to the author for doing a seriously great job!

Here’s The Video


I hope you found it informative – I sure did.


If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com.

Please note the photo was extracted from the video and remains the property of its respective owner(s).


ATF Opinion Letter on AR Pistols – Some Key Considerations

In this ATF letter, the author asked the ATF’s opinion on a number of great AR pistol related questions.  I am paraphrasing a few points I found important to help folks doing full text searches for opinions:

1) An AR lower receiver is neither pistol nor rifle until it is built the first time.  If you want to make a pistol, a lower receiver must *never* have been built in a rifle configuration.

2) AR pistols do not have a barrel length restriction.

3) AR handguards can be used on an AR pistol

4) An AR rifle and pistol can be in the same household — note, and this is a personal comment, what got a guy in trouble years ago was that he had only an AR rifle and a pistol upper with no lower to mount it on.  I don’t remember all of the details but the main thing here is that you never want it to look like the only reason you have a pistol/SBR upper is to put in on your AR that is legally classified as a rifle.

5)  Magpul angled fore grips (AFGs) are permissible on the bottom accessory/picatinny rail.

AR_Pistol_1AR_Pistol_2AR_Pistol_3

 

I recommend people print and keep copies of letters just in case they need to show someone that some aspect of a weapon was “approved” by the ATF at some point.  Just bear in mind that ATF letters are not absolutes but it helps to have them handy if asked.  A state or local government may have their own more restrictive regulations as well so this may not mean AFGs are legal for everyone everywhere.

Legal Disclaimer:  I am not an attorney and am not giving legal advice.  I am just passing this information along and it is up to you to determine what you can/can’t do.

ATF letter stating that the Magpul AFG is legal for use on AR pistols

Folks, here is an ATF letter saying that an angled foregrip (AFG), such as Magpul’s models, can be used on an AR pistol.  This is the first time someone shared a definitive letter with me vs. hearsay.

12/14/2014 Update:  Here are scanned images of two different ATF letters saying AFGs can be used on AR pistols because they are not considered vertical grips:

atf-afg

This is a second letter wherein they answer a number of good questions about AR pistols in general.  On page three is another comment that the AFG is allowed:

AR_Pistol_1
AR_Pistol_2
AR_Pistol_3

The reason this matters is that a vertical foregrip is not legal without first registering the pistol as an “any other weapon” or AOW.  I recommend people print and keep copies of letters just in case they need to show someone that some aspect of a weapon was “approved” by the ATF at some point.  Just bear in mind that ATF letters are not absolutes but it helps to have them handy if asked.  A state or local government may have their own more restrictive regulations as well so this may not mean AFGs are legal for everyone everywhere.

Legal Disclaimer:  I am not an attorney and am not giving legal advice.  I am just passing this information along and it is up to you to determine what you can/can’t do.


If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com.

Sources For AR Parts

The following are all vendors of AR parts including barrels, handguards, triggers, magaziness and what have you that I use and recommend:

Beware no-name knock off websites selling generic import stuff. Some of the parts are counterfeit and not rated for firearms use.