Suppressed 9mm AR pistol

**dubs chops** · 11-18-2009, 04:15 PM

Hey guys, I was wanting a little input from the AR guys on here. I am thinking of building a AR pistol. I was originally thinking of doing a .223 but then saw a pretty good looking AR 9mm pistol. My plans are adding a suppressor when money allows, so I was thinking the 9mm would be a little quieter as well. And still make a decent Home defense gun in the meantime. And being a pistol I wouldn't need to get a SBR stamp. So does all my thinking sound about right? Any tips or ideas that I should know about before setting out? What kind of lower do I need to get in order to build a pistol? Do I have to register it after I build it?

Thanks.

BW

**dustingaunder** · 11-18-2009, 04:21 PM

If you buy a stripped lower it will be marked "receiver" on the 4473. You can either build it into a pistol or a rifle, but if you ever build it into a rifle it can't be a pistol. MAS Gunworks has several lowers you could start with. They would even get my vote to build you the whole gun. Probably save a little cash over doing it yourself. I bought the parts and had Josh-L build my 9mm upper and he did a very nice job. I'd recommend him as well.

Gratuitous pr0n:

**MAS GunWorks** · 11-18-2009, 04:27 PM

Nice looking rifle. Got to love a 9mm AR.

Good choice on your hammer and trigger pins. KNS pins is a must in a 9mm build in our opinion.

**Glocktogo** · 11-18-2009, 04:33 PM

FWIW, I feel an AR w/o a stock is a serious handicap to saddle the gun with regardless of caliber. I think a suppressed, short barrel 9mm AR would be a really nice addition to the fold, but only with a stock and tax stamp. An extra $200 would be cheap compared to what you'll spend on the gun and can. JMO, YMMV

**dubs chops** · 11-18-2009, 04:38 PM

I may end up getting my lower from MAS but I would prefer to buy one with no paperwork if that option is possible. So If I bought a used lower that was already a pistol lower I wouldn't have to register it as anything would I? ANd I think a carbine length tube with a foam cover would do fine for a 9mil. It won't have any kick to It i wouldn't think. and the foam should be good enough to get a cheek weld on.

**264Magnum** · 11-18-2009, 04:53 PM

AR pistols are silly and impossible to shoot well. If you're going to spend the money on a can and stamp, just SBR the thing at the same time.

**CAR-AR-M16** · 11-18-2009, 04:58 PM

Originally Posted by dubs chops

I may end up getting my lower from MAS but I would prefer to buy one with no paperwork if that option is possible. So If I bought a used lower that was already a pistol lower I wouldn't have to register it as anything would I? ANd I think a carbine length tube with a foam cover would do fine for a 9mil. It won't have any kick to It i wouldn't think. and the foam should be good enough to get a cheek weld on.

If you are trying to "get a check weld" then it sounds like you intend to shoot it from the shoulder, not to shoot it like a pistol. Just file the Form 1 and make it an SBR. Why so paranoid about the paperwork?

Originally Posted by 264Magnum

AR pistols are silly and impossible to shoot well. If you're going to spend the money on a can and stamp, just SBR the thing at the same time.

Exactly.

**dubs chops** · 11-18-2009, 05:11 PM

On the paperwork thing, I don't know. I guess all my paranoid friends are rubbing off on me. I have bought new rifles and pistols in the past.

I do not have the money to get a can or stamp right now, That is why I am just going to build the pistol at first. It is basically a SBR that don't have a buttstock. And being a 9mm I really dont think I need a stock on it. therefore the extra weight and $200 Plus the cost of a stock is unnecessary. WHen I do get enough money saved for a can and stamp then maybe I will get the SBR too, but I really think I will still not feel it is worth it just to have a buttstock.

**Glocktogo** · 11-18-2009, 05:33 PM

Buttstocks are highly underrated.....

**264Magnum** · 11-18-2009, 05:38 PM

Originally Posted by dubs chops

I really think I will still not feel it is worth it just to have a buttstock.

You will.

**RustyZX9** · 11-18-2009, 05:42 PM

Originally Posted by 264Magnum

You will.

^^^this....

I tried the direction that you're now considering but ended up here...

**dustingaunder** · 11-18-2009, 06:25 PM

High speed, low drag, tactical bands you've got there Rusty.

**gillman7** · 11-18-2009, 06:47 PM

Originally Posted by RustyZX9

^^^this....

I tried the direction that you're now considering but ended up here...

I hate you, I hate you, I hate you.........

I dropped off my lower for engraving, am ordering parts for the upper, and as soon as Martin gets in some YHM Cobras in, I get to send off for tax stamps.....So at least another 6 months.....

**Josh-L** · 11-18-2009, 08:00 PM

Originally Posted by dubs chops

And being a 9mm I really dont think I need a stock on it. .

9mm ARs recoil just as much if not a little more then a 556 AR. Get a stock. The extra time you have to wait and save for that extra $200 is well worth it.

**CAR-AR-M16** · 11-18-2009, 08:19 PM

Originally Posted by Josh-L

9mm ARs recoil just as much if not a little more then a 556 AR. Get a stock. The extra time you have to wait and save for that extra $200 is well worth it.

+1 I got to shoot another member's full-auto 9mm AR last week and I was surprised at how it had more recoil than my 5.56mm M-16.