AR Pistol or not??

[Areoflyer09]

I don't even see an 8" MPX pistol on the Sig website currently. Seems all the pistol versions on the site have very short barrels. Not sure if I am navigating incorrectly or what. I think, though I need to shoot one that I'd want a pistol with a brace, but not a super short barrel, if I went the MPX path.

I believe, for some idiotic reason, the 8” is offered only as an SBR now. Indy Arms has a rental MPX pistol.

 

[Ggreen]

Glock mags feed at an angle optimized for a tilting barrel. They are 2x the cost of reliable steel colt mags. They insert at an angle not suited to carbine, slanted not straight. I can't understand the draw to a glock mag carbine.

Ar9's properly built all not slap. My competition carbine is a blowback operated 9mm that shoots like a 1022. I agree that purpose built subguns are generally better, but you will pay more for it generally .

 

[nipprdog]

I came across this after I bought my PSA. Had I seen it before, I would have considered it.


https://www.primaryarms.com/foxtrot...e-side-charging-9mm-ar-pistol-with-sba3-brace

They also offer a 5" version

 

[Cameramonkey]

Glock mags feed at an angle optimized for a tilting barrel. They are 2x the cost of reliable steel colt mags. They insert at an angle not suited to carbine, slanted not straight. I can't understand the draw to a glock mag carbine.

Ar9's properly built all not slap. My competition carbine is a blowback operated 9mm that shoots like a 1022. I agree that purpose built subguns are generally better, but you will pay more for it generally .

You obviously dont have dozens of Glock mags laying around already.

 

[Ggreen]

You obviously dont have dozens of Glock mags laying around already.

I do. But I can get factory 30rd stribog mags for 20 bucks and colt mags. I have no desire for carbine mags under 30rds and no desire to put 30 round sticks in my g17 at 2x the cost of good 32rd colt mags. It doesn't make sense to me.

 

[Voldemort]

So i ordered that last stainless 10.5 " 300 blk barrel from Classic. Now I see handrails in .308 caliber, is this what i need or will any handrail work? Dont know why a rail has a cal....

 

[Ggreen]

So i ordered that last stainless 10.5 " 300 blk barrel from Classic. Now I see handrails in .308 caliber, is this what i need or will any handrail work? Dont know why a rail has a cal....

Any ar15 rail, not a 308 ar10 style. A standard ar15 upper, mags, parts and lower are all you need for 300blk

 

[WebSnyper]

I believe, for some idiotic reason, the 8” is offered only as an SBR now. Indy Arms has a rental MPX pistol.

Well that blows.

 

[Areoflyer09]

Well that blows.

Yep. I expect we’ll see the used 8” pistols command a premium as well now.

 

[Cameramonkey]

After poking around a bit, and ALMOST pulling the trigger on a new PSA pistol tonight, I think I'm gonna play around and reuse my existing AR pistol lower I just built and try a mag block conversion to build up a pistol using my parts. It'll use colt mags so I cant reuse the drawer full I own, but like Ggreen said, they are cheap.

 

[Ggreen]

After poking around a bit, and ALMOST pulling the trigger on a new PSA pistol tonight, I think I'm gonna play around and reuse my existing AR pistol lower I just built and try a mag block conversion to build up a pistol using my parts. It'll use colt mags so I cant reuse the drawer full I own, but like Ggreen said, they are cheap.

Macon armory has the most consistent running colt mag block I've found. You will have to tune the ejector to your bcg (very easy). 90 percent of people who have running issues with Ar9's are due to ejectors not being set up properly.

My uspsa pcc set up.

.

 

[WebSnyper]

Yep. I expect we’ll see the used 8” pistols command a premium as well now.

There was one in the classies recently without a brace (assume one can attach one without much trouble) for with my little knowledge on the topic looks to have been a decent price. Just amazed Sig would move away from that config. I thought I saw one like that at NRAAM but I guess it could have been an SBR. Just the way it goes, kind of figure out what I like and it gets discontinued.

 

[Ggreen]

... 8" 9mm sub gun. Completely ambi and built like a brick****house. These are doing seriously good in euro pcc competition. Grand power stribog. You can get a brace adapter for ar style or mcx style braces. I put mine on a form 1 and am getting the factory euro folder. With a set of shims it takes ar triggers. For 700ish.

They have a roller version working through atf now expected to be under 1k...

 

[Yamadog35]

Just as a fun 9mm option, some might want to consider the PSA AKV. These had some problems when first released in December, but it seems they've worked through that. I have one of the first batch that they sold and mine has not had those original problems. It is an economical option if you already have a Scorpion as the mags work in both guns. The PSA mags are steel reinforced lip 35 rounders that are are normally $20 and on sale right now for $15 (just got another 5). The gun has LRBHO and a hinged dust cover with pic rail that so far has been solid for mounting a red dot. It runs pretty well suppressed too. Not overly gassy. PSA is trickling them out so they're a bit hard to buy at the moment, but at some point I'm sure they'll catch up.

 

[SgtCarter]

Has anyone used Qc10 to build their 9mm AR pistol? I've heard good things about them but looking for first hand experience.

 

[Floivanus]

It begins...

https://www.bearcreekarsenal.com/bc...lackout-carbine-length-gas-system-w-1-7-twist

300 blackout. Pistol gas, pistol gas, pistol gas.

otherwise you won’t get all four; subs and supers, suppressed and unsuppressed. I’d be shocked if it ran supers unsupressed

 

[t-squared]

Just got this in my e-mail this morning. Not sure if he's right or wrong in his opinions, but I thought it was kinda interesting.

https://www.cheaperthandirt.com/blo...PELqr&sc_llid=1166580&sc_eh=8a1bc2a578d4c9651

 

[Ggreen]

Just got this in my e-mail this morning. Not sure if he's right or wrong in his opinions, but I thought it was kinda interesting.

https://www.cheaperthandirt.com/blo...PELqr&sc_llid=1166580&sc_eh=8a1bc2a578d4c9651

Is right, except it doesn't cover how fun they are lol.

Just picked this upper up online for 190 shipped .

 

[Voldemort]

so i decided on 10.5" barrel 300blk out pistol gas etc,

no comes the rail decision...ugh

 

[Cameramonkey]

I wonder if places like PSA ask themselves "what the heck just happened?" after one of these threads takes off and we all start building stuff.