9mm AR's

Do a 10mm or 45acp next go round.

I swear, if I was made out of money, I would be putting together parts for either one right now instead of typing.

Kak makes good stuff. Hahn does too, but they're way up there. Spikes also did magwell adapters. They may still be for all I know. I haven't looked in a while.

And the 45's aren't really that much more expensive to build either. You just have to be patient waiting for the parts to be available.

First that I have heard of them.

I knew it was just a matter of time though. Thanks for sharing that.

1. There is a 9mm mag release that works a little better in some cases.

I recently switched to one because I have one mag that the mag catch barely held the mag in place. With that one mag, it would just all of a sudden just drop out and land at my feet without rhyme or reason or warning.

Since I have replaced the catch with this, it seats a little deeper and the mag and work better.

http://stores.9mmar.com/spikes-tactical-mag-catch-9mm-only/

or

https://www.rockriverarms.com/index.cfm/fuseaction/product.display/product_id/5819/index.cfm

3. magazines run anywhere from $10-$32'ish each depending on which you like. Most all of mine are converted uzi mags because I already had a bunch of them. And converting isn't exactly the right term I guess, but I had to mill the notch for the mag catch in the bodies. Took all of a couple minutes each measuring them and then taking the spring and follower out so I didn't cut them too. They don't hold the bolt open though. Other mags like Cpro and ASC, Colts, and metalform will lock back when empty.

Personally, I don't mind it not holding open and it isn't a huge deal to me. I would personally hope to never have to expend an entire 32 round magazine in the first place. But I see the appeal of it I guess. In reality, I have more guns that don't lock open when empty than do. So, I don't pay much attention to it.

4. I think I have about $210 tied up in my mag block and Anderson stripped lower altogether. At the same time, they didn't have the glock conversions when I was doing mine. I have also seen Sten conversion mag blocks when sten mags were dumped on the market for cheap. And there was a company that made a mag block for Unmodified uzi mags if you could find one on the used market because I don't think they're in business anymore despite the blocks worked great.

I also don't have any glock stuff, so I'd have to spend out more buying a bunch of mags too so that too is a consideration.

I don't necessarily think either glock, colt, sten, uzi, or whatever style is better than another really. Just a different route to get to the same point. The only exception maybe would be glocks have drums. But I'm not a big drum mag guy anyway. I can usually buy enough stick mags to have double the capacity of a drum for the same cost per capacity. But, that's getting into a different subject altogether.

For me, the shorter variant is more useful.

But you have to weigh in your wants, needs, laws, etc.

^ I think you answered your own question

You will get an ever so slight increase in velocity with the carbine.

Not enough to really make you do a happy dance, but will be enough to push some subsonic bullets just barely over into supersonic territory and start making supersonic cracks every now and then even with a suppressor.

Of course, the carbine can have a stock, grip, and all the usual bells and whistles, though I still like the shorter variants.

They're not long range weapons, so the shorter ones perform as well as the bullet itself will do.

Even the shorter ones are capable out to 150'ish yards if you do your job. Aim at the head and you'll hit somewhere in the torso at extended distance. That's with a 25 yard zero.

Incidental/accidentally touching it against the shoulder while firing is one thing.

Intentionally shouldering a brace and/or using the brace as a stock/shoulder fired gun, will reclassify the pistol as an SBR. You don't want to do that.