this is a 3d printable AR22 mag that looks like a P mag but works in conjunction with a Catch 22 Bolt catch and spring.
ar 22 mag springs can be purchased from black dog machine.
LBRY Tags: ar22; .22lr; ar15
stl files for AR 22 magnum 35 round magazines
bull pup rimfire magnum AR lower .22 mag or .17 HMR
22 cal AR 322 mag round body v2