|7/25/22 Update: This only applies to our second generation magazines. With our current mags, we are using Mec-Gar P18 tubes that were designed to stabilize 9mm rounds so no extra work is needed. We now have 10, 15 and 17 round mags available.|
To maximize reliable feeding from our second generation 9mm magazines, there is a process you need to follow. We start with a 10mm magazine and both narrow down the feed lips and reshape the top. This angles the cartridge correctly but we also need to ensure the cartridge is seated to the back of the magazine. Why? Well, let me explain a bit.
The RIA A2 HC pistols use an enlarged mag well to hold a staggered magazine – it’s not a true double stack because the rounds alternate going into the magazine and feed from a single position at the top. An important detail that not many realize is that the 9mm, .38 Super, .40 S&W and 10mm auto chambered pistols all use the same frame.
Even though the frame is the same, there is a huge difference in the size of a 9mm vs. a 10mm round so the mags are subtly different as well. The magazine dimensions in terms of width and height are the same but the feed lips differ slightly plus the follower stabilizing guides that are pressed into the body differ as well.
A 10mm magazine body can stabilize the follower when feeding 9mm rounds but it takes a couple of tricks to do it. First, the magazine has a 10% stronger Wolff spring that is pushing the follower upward. Next, the cartridges must be loaded evenly and pushed to the back. Do you remember the old AR15/M16 magazines with the tipsy followers? These are very much the same. If you load the rounds by hand and push down too much on the front, weird things can happen with the rounds further down in the mag.
To compensate for the follower, use a good magazine loader so the rounds go into the mag relatively level and consistently. I prefer the MagLula Universal loader (sometimes called the UpLula). You can get into a quick rhythm where you load a round and keep it seated to the back with your index finger as your withdraw the ramp/tongue of the MagLula. If you don’t keep your finger there, the retracting ramp may pull the round forward out of position.
The very last step is the tap the base of the mag on the table. You might need to push the first round back a hair with your finger but you will notice the top round is now firmly held in place and will not “tip” down when you push on the bullet. This is where the 10% stronger Wolff spring really factors in – it is pushing the follower upwards and in turn all of the rounds are held in position by the feed lips.
Yes, there are a couple of extra steps here – use a loader, push to the back and then tap the mag’s base on the table. It may feel awkward at first because you don’t normally do these extra steps but they get easier and faster the more you do them. If you do them, the mags are very reliable.
Click here to go to our 9mm RIA A2 HC magazine page.
|If you have a new RIA A2 HC pistol, be sure to field strip, clean and lubricate your pistol. Then rack the slide back and forth a couple hundred times before your first range visit. If you do this, you are helping the pistol wear in and will have a much better range visit. If you don’t, you are going to get frustrated fast. Note, you need to shoot 200-500 rounds to wear, or break your pistol in. The need for the parts to smooth out and get to know each other is very common – just bear in mind the RIA pistols do not work smoothly right out of the box.|
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