Non-reciprocating Side Charging AR builds.

[P-12 Norm]

I was intrigued by a Brownells email, which had a special for a side charging non-reciprocating pistol caliber AR upper. From what I can gleen, we can still legally build AR pistols with stripped lowers in MD, can't we?
Anyway, I went looking for ones in .45 ACP (the one at Brownells is only in 9MM). Some of them seem to have a blow-back operation bolt, with an internal to the upper spring. That would eliminate the buffer tube entirely. It would be nice to put a dual sling mount like the AR rifles can get to mount on the lowers opening for the buffer, but are there plugs to close that hole up, or am missing something (entirely possible, eh). Or is there a specific lower. Unable to find one. Looks like it would be a fun pistol to have and carry.

 

[John from MD]

I saw the same email and it is a blowback 9mm. I'll give it to them that it is compact but I will wait to see what the reviews say about them.

 

[alucard0822]

Is that the BRN-9 upper? still blowback, 5.5", no buffer tube needed, main benefit is that it allows a side folding pic rail mounted stock. It's $550, kind of expensive for what it is, and everything is proprietary on it.

 

[P-12 Norm]

There are others in .45 ACP out there. I am wondering what kind of lower would be best, and since there is no need for buffer tubes, what lowers would work.

 

[outrider58]

Is that the BRN-9 upper? still blowback, 5.5", no buffer tube needed, main benefit is that it allows a side folding pic rail mounted stock. It's $550, kind of expensive for what it is, and everything is proprietary on it.

I've seen the add. They are perfect for those who have pre 2013 SBRs and don't have to adhere to the 29" rule. It wouldn't be much fun with an 11" barrel, otherwise.