Jmac Customs Rsa-4.5

JMac Customs RSA-4.5

(R)ailed (S)tock (A)dapter (4.5)mm folding rear trunnion

Talk about the perfect upgrade!

The RSA-4.5 is the equivalent to our Mod-2 stock adapter which offers the ability to host Sig Style Stocks PLUS M-4 stock capabilities.

Black hard anodized finish

REPLACEMENT PIN IS RECOMMENDED