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Discussion Starter · #1 ·
I know this sounds like a dumb question...but are they functional or more of an oddity/toy?

I live in the socialist state of Illinois so SBRs are off the table (mostly). I've really wanted a 9mm AR but a 16" barrel rifle is just plain absurd. If I'm going to go full length, a pistol caliber is not what I want.

Figuring I can't get a SBR, this leaves me with looking at a AR pistol.

What I know of shooting firearms like an AR pistol is that they are hard to shoot properly. No way to secure them up means holding a heavy firearm out in front of you relying on your arms to steady it...which doesn't work well.

Either way...just wondering what you pistol owners think of them...
 

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300BLK, 10.5" barrel, Sig Arm Brace.

Poor man's SBR with a round that has ballistics to match the length of barrel... i.e. 300BLK burns it's powder in the first 8-9 inches of the barrel. Very maneuverable
 

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300BLK, 10.5" barrel, Sig Arm Brace.

Poor man's SBR with a round that has ballistics to match the length of barrel... i.e. 300BLK burns it's powder in the first 8-9 inches of the barrel. Very maneuverable

^^ This. I really like my 300 BLK. 8" barrel and the Sig brace.
No need for all that paperwork when I cross state lines.
 

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How effective/practical is the arm brace? I know you can "use" is as a stock, but is it worth a darn that way?
 

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How effective/practical is the arm brace? I know you can "use" is as a stock, but is it worth a darn that way?
In my experience it works great. I'm a compact LOP rifle shooter anyway, and the SIG brace functions very much like a stocked SBR for me. I'd have no qualms doing a 3-day rifle class with an AR pistol with the brace. YMMV
 

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It works. You will need to insert the buffer to the depth best suited for your eye relief.
Mine is 3" from the buffer attachment point.
Perfect for use with my Eotech and MBUS.
I am grouping 2" at 25 yards first time out to the range.
 

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Discussion Starter · #7 ·
You know...that SIG arm brace completely slipped my mind. I pick up one of those from Amazon and put it on ice while I look for a 9mm AR pistol...
 

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You know...that SIG arm brace completely slipped my mind. I pick up one of those from Amazon and put it on ice while I look for a 9mm AR pistol...
So how does it work?

You buy an AR pistol and just slip that brace on?
 

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Discussion Starter · #9 ·
So how does it work?

You buy an AR pistol and just slip that brace on?
Yup. And it's sneaky but you can shoulder it as well...

Great vid explaining everything here:

 

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Keep in mind - Once a rifle, always a rifle. Cannot convert a lower that has been built as a rifle to a pistol. However, you can buy a pistol, and submit SBR paperwork, get the stamp back, the convert it to a rifle.

The Sig brace works because it is specifically intended to be used on a handgun, and as designed, aids in shooting the weapon one-handed. Just because you misuse the product doesn't mean it's illegal.

The brace slides on a pistol buffer tube.
 

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Even without the brace--just put the end of the buffer tube to your shoulder...it works just fine.

And, yes--they are very usable.
 

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Discussion Starter · #14 ·
Keep in mind - Once a rifle, always a rifle. Cannot convert a lower that has been built as a rifle to a pistol. However, you can buy a pistol, and submit SBR paperwork, get the stamp back, the convert it to a rifle.

The Sig brace works because it is specifically intended to be used on a handgun, and as designed, aids in shooting the weapon one-handed. Just because you misuse the product doesn't mean it's illegal.

The brace slides on a pistol buffer tube.
Yeah...I'm going to begin looking for a 9mm AR pistol now...which may be tough because I can't recall seeing them out in the wild very often.
 

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I know this sounds like a dumb question...but are they functional or more of an oddity/toy?

I live in the socialist state of Illinois so SBRs are off the table (mostly). I've really wanted a 9mm AR but a 16" barrel rifle is just plain absurd. If I'm going to go full length, a pistol caliber is not what I want.

Figuring I can't get a SBR, this leaves me with looking at a AR pistol.

What I know of shooting firearms like an AR pistol is that they are hard to shoot properly. No way to secure them up means holding a heavy firearm out in front of you relying on your arms to steady it...which doesn't work well.

Either way...just wondering what you pistol owners think of them...
Where are you at in Illinois?
 

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Discussion Starter · #18 ·
I was going to say, if you are anywhere near me, I have a glock mag AR 9mm you are welcome to try out. I'm just waiting on sights for it.
Did you build your own? If so...how did everything come out?

I've never built an AR from the ground-up so I'm a bit shy concerning trying my hand at a 9mm pistol build as my first go. I have a RRA AR so I'm definitely not unfamiliar with the platform though.

It seems the RRA is a nice little turn-key, that's why I was looking at one. That and they sell 30rd magazines for their own pistol as well...
 

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Did you build your own? If so...how did everything come out?

I've never built an AR from the ground-up so I'm a bit shy concerning trying my hand at a 9mm pistol build as my first go. I have a RRA AR so I'm definitely not unfamiliar with the platform though.

It seems the RRA is a nice little turn-key, that's why I was looking at one. That and they sell 30rd magazines for their own pistol as well...
Nope, I ordered mine from Lone Wolf Distributors..

https://www.lonewolfdist.com/Products.aspx?CAT=3682
 

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I love mine and have used it in a Patrol rifle school to good effect out to 150 yards! This has become my "go to" weapon. I have it with me everywhere I go. In my truck, in my RZR, on my 4 wheeler and when I get my new Gen 3 Law Tactical folding "buffer tube" adapter it will be easier to get in my Backpack.

Mine is a Lewis Machine and Tool MK 18 upper w/ Anderson Lower. It shoots just over 1 Moa (1 1/8")@ 100 yards with TAP 55g, which makes it a almost perfect PDW.

I love the Gen 2 Sig brace...when I get my Gen 3 folding "buffer tube" adapter the extra length will make the eye relief just right.
 

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