9mm ARs

[ugimports]

Important: you may want the new frontier upper that takes double stack mags like the mp5. Eventually you will buy all lowers that takes all kinds of mags anyways.

I'll double check, but I think that upper was having the same issue with the BCG. I have both types of their uppers including a side charging to test out.

[ysr_racer]

OP, I shoot at The Firing Line in Huntington Beach, and Raahauge's in Corona weekly if you want to try it

[hermosabeach]

As the 9mm is not mil spec... if you don't tinker, can you buy a complete gun?

If it does not feed or cycle right, you can send it in for work?

[ARFrog]

Checkout Angstadt Arms for either 9mm receiver sets and parts to build your own:

https://angstadtarms.com/shop/firearms/receivers/

https://angstadtarms.com/product/9mm-complete-16-upper-assembly/

Or buy a complete rifle:

https://angstadtarms.com/shop/firearms/complete

I personally bought an upper and Glock mag lower and completed my own rifle. It is well made and shoots great.

[ugimports]

As the 9mm is not mil spec... if you don't tinker, can you buy a complete gun?

If it does not feed or cycle right, you can send it in for work?

Yes, there's a few manufacturers that have complete rifles as noted in this thread.

You can also DIY by purchasing a complete lower/upper from the same mfg in order to do the compliance work yourself.

My NFA C-9 Lower/C-9 Upper build has been flawless.

[HKAllTheThings]

Or just buy that Ruger PCC

[hitdank]

I have the g9-4 bolt works in both spikes glock and nfa mp5 lower.

Edit: G4-9 bolt.

[gunhun]

For a good mag adapter option, check out Stern Defense. Good reviews, including from Miculek (see his PCC YouTube review video). I used it together with their complete 16 upper and BCG on a standard Anderson AR15 lower build and no hiccups after a couple of matches.

[L4D]

[ysr_racer]

Or just buy that Ruger PCC

I've got one of those too. It weighs a ton.

[enorbit3]

What BCG are you guys using if you're using an Anderson AM-9 or Spike's Tactical lower?

I'm using a complete upper from NFA on a few test builds and the BCG that comes with it is not compatible with the LRBHO of the lowers which is what I wanted to test.

Faxon BCG, faxon barrel. Spikes upper receiver. Spikes buffer and .308 buffer spring.

[enorbit3]

Or just buy that Ruger PCC

[subscriber]

I heard you lose velocity on 9mm after 10”

For these loads, velocity from 18" barrel higher than the same barrel cut to 10. Certainly not lower, although that is possible with light loads: http://www.ballisticsbytheinch.com/9luger.html

The longer barrel takes some intensity out of the muzzle blast. It may also increase slight radius. The rifle length and stock improves general handling and aiming stability.

[Mute]

New Frontier Armory has a few 16" options that can use Glock mags. They'll also make the rifle CA compliant for you prior to shipping to FFL if you pay for the service and parts. If you prefer just the upper, they have a some options as well.

[ysr_racer]