Just built this AR Pistol....

Rack&Roll · Apr 25, 2018

Depends on what the meaning of IS is...

Major03 · Apr 25, 2018

RedTide said:
I generally go for both, personally, because I hate the idea of a dead battery or malfunction ruining a range day.

Hawkeye · Apr 25, 2018

bilbravo said:
Just pulled the trigger (heh) on an 8.5" barreled upper from PSA. Anyone think a SPARC is good for a 300AAC pistol, or should I just get some BUIS?

The SPARC is a great site for an AR pistol. I run one on my 8.5" .300BLK SBR, actually. They're small, lightweight, and quick.

bilbravo · Apr 25, 2018

Hawkeye said:
The SPARC is a great site for an AR pistol. I run one on my 8.5" .300BLK SBR, actually. They're small, lightweight, and quick.

Thanks for the feedback. Looking at the Ruger quick deploy sights as well. I have Magpul on my regular ar15.

sent from mobile

treasurehunter · Jul 24, 2018

Nice . What length barrel and handguard is that. I like the look. Thanks.

Mdeng · Jul 24, 2018

treasurehunter said:
Nice . What length barrel and handguard is that. I like the look. Thanks.

Use the quote button next time. It helps everyone know who you are talking to.

Welcome to the forum.

treasurehunter · Jul 24, 2018

Thanks.

treasurehunter · Jul 30, 2018

I have read most of this long post and it is very interesting, nice builds. What I have gathered from it is:
Ar 15 .223 pistols built with 80% lowers are legal in Maryland if/and
1. They use a brace and Not a stock. Brace can now be shouldered.
2. They are under 26 in total length?
3. They have No VFG
4. They Do not need a heavy barrel for .223
5. They do not exceed 10 rd. capacity.
Not sure on point 2 and 3, need clarification. I just don't want to be almost correct.

Hawkeye · Jul 30, 2018

treasurehunter said:
I have read most of this long post and it is very interesting, nice builds. What I have gathered from it is:
Ar 15 .223 pistols built with 80% lowers are legal in Maryland

Yes.

1. They use a brace and Not a stock. Brace can now be shouldered.

Yes. If you want to use a stock, you need to register it as an SBR with the attendant paperwork and taxes.

2. They are under 26 in total length?

Even if they are over 26" it's still fine. 26" is the magic line for becoming a "firearm: instead of just a pistol.

3. They have No VFG

Correct. You can have a VFG on a "firearm," but not on a "pistol."

4. They Do not need a heavy barrel for .223

Correct.

5. They do not exceed 10 rd. capacity.

Incorrect. There is no capacity limit for an AR pistol in MD. You can not buy magazines with a capacity of more than 10 rounds here, but having them is perfectly legal and you can purchase them out of state and bring them here.

The capacity thing for pistols is that any pistol with a fixed magazine that can accept more than 10 rounds is a banned assault pistol. So unless you build an AR pistol with a non-removable magazine, this doesn't matter.

treasurehunter · Jul 31, 2018

Thanks Hawkeye for confirming the information. I can build now. Good day sir.

RuralRifleGuy · Aug 22, 2018

So question as someone building their first AR pistol. I noticed that several photos in this thread show the muzzle device either fully or partially within the handguard (posts #9 and #51). Googling this setup results in several articles saying not to do this because it can damage the handguard and cause injury to the user.

I’m looking at a 10.5” barrel with a 12.28” handguard, muzzle device puts the OAL of barrel at 12.25” which leaves the handguard extending past the muzzle by like 1.5mm. It’s a 300BLK build if that affects the answer. My thinking was a suppressor should fit within the end of the handguard and would result in a shorter appearance (similar to post #147). The muzzle device I planned on using until I get the suppressor is a VG6 GAMMA 300BLK.

Is this safe to do or not?

outrider58 · Aug 22, 2018

RuralRifleGuy said:
So question as someone building their first AR pistol. I noticed that several photos in this thread show the muzzle device either fully or partially within the handguard (posts #9 and #51). Googling this setup results in several articles saying not to do this because it can damage the handguard and cause injury to the user.

I’m looking at a 10.5” barrel with a 12.28” handguard, muzzle device puts the OAL of barrel at 12.25” which leaves the handguard extending past the muzzle by like 1.5mm. It’s a 300BLK build if that affects the answer. My thinking was a suppressor should fit within the end of the handguard and would result in a shorter appearance (similar to post #147). The muzzle device I planned on using until I get the suppressor is a VG6 GAMMA 300BLK.

Is this safe to do or not?

Those are all muzzle devices made to direct muzzle blast forward(of the shooter). They are safe. Never have any muzzle device end INSIDE your handguard. You can suffer devastating consequences.

RuralRifleGuy · Aug 22, 2018

outrider58 said:
Those are all muzzle devices made to direct muzzle blast forward(of the shooter). They are safe. Never have any muzzle device end INSIDE your handguard. You can suffer devastating consequences.

Ok that makes sense and lines up with what I read elsewhere. So it looks like I need to go with something like a Noveske KX3 Flash Suppressor since it would direct the blast forward and when I figure in it’s length extends past the end of the handguard by just under 1.5” inches which would make it safe.

Bob A · Aug 22, 2018

300BLK, 8.5" bbl, Surefire Warden diverter. Someday it will be canned; meanwhile it's socially responsible.

outrider58 · Aug 22, 2018

Bob A said:
View attachment 240369

300BLK, 8.5" bbl, Surefire Warden diverter. Someday it will be canned; meanwhile it's socially responsible.

Very nice Bob A. Just be sure your can will specifically handle an 8.5" barrel. Things get pretty critical at that length.

Bob A · Aug 22, 2018

outrider58 said:
Very nice Bob A. Just be sure your can will specifically handle an 8.5" barrel. Things get pretty critical at that length.

Sure hope it can.

It's got the SLR adjustable gas block, per Chad. What do I need to be aware of? (I'd figured on a Surefire can, and of course their muzzle device is already installed.)

Bob A · Aug 24, 2018

Responding to Outrider's suggestion I queried Surefire about the feasibility of suppressing my build. Their response:

Hi Robert,

We have shot 300blk on a 5.5 in barrel with no issues. With your set-up you should be fine. We would recommend a bore alignment rod to ensure concentricity.

outrider58 · Aug 25, 2018

Bob A said:
Responding to Outrider's suggestion I queried Surefire about the feasibility of suppressing my build. Their response:

I have such a rod. When the time comes, I'd be glad to check bore alignment for you once you get set up. I'm in MoCo. :thumbsup:

Bob A · Aug 25, 2018

outrider58 said:
I have such a rod. When the time comes, I'd be glad to check bore alignment for you once you get set up. I'm in MoCo.

Thank you.

I rec'd an addendum from Surefire this morning:

If you are shooting anything other than 300BLK, with the SOCOM 300SPS, such as 5.56 we usually recommend a min barrel length of 10.5 in.

Included here for the record.

outrider58 · Aug 25, 2018

Bob A said:
Thank you.

I rec'd an addendum from Surefire this morning:

Included here for the record.

That's good to know because I use my .30 YHM on some of my 5.56. My YHM is not rated for anything shorter than 10" no matter the caliber.

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Just built this AR Pistol....

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