Trying to find this part - don't know what it is called.

[longbow]

Looking for the part that screws into the back of a lower so I can mount a stock or folding brace to it. I'm building a 22 plinker with a cmmg 22 conversion.

 

[shootersix]

KNS AR-15 Buffer to Picatinny Rail Adapter Kit Flange

The KNS Precision AR/MCX Stock Adapter allows the user to mount a picatinny-style stock attachment (such as the SIG MPX folding stock or brace) in place...

www.midwayusa.com

Buffer tube to pic rail adapter

 

[Slow Hand]

Like this?

https://www.midwayusa.com/product/1022440015

 

[longbow]

Thanks, I tried like six guesses and got bunk. Off to order some stuff

 

[nipprdog]

INGO to the rescue!

 

[KokomoDave]

We will help you spend your money!

 

[fullmetaljesus]

The name you're looking for is a "barrel shroud". They are handy but it makes the assault rifle as heavy as 10 boxes when you're moving.

 

[jsx1043]

Shoulder thing that goes up adaptor

 

[longbow]

I ordered the part and got 20% off. Letting the wife pick the folding stock and optic, I think an aimpoint comp 4s is overkill for a 22 rim fire.