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.
These will fit 104/106/107 ur/cr/fr rifles
Black hard anodized finish
REPLACEMENT PIN IS RECOMMENDED CAN BE PURCHASED HERE
*BLEM = ding/dent/chip in finish. All BLEM Sales are FINAL.