The Sierra K Receiver Extension Kit is the proprietary mounting system for the Sierra K Buttstock. It consists of a reduced-length, mil-spec diameter, 7075 aluminum, 5-position receiver extension, a short heavy buffer (3.5 oz), extra power spring, castle nut, and quick disconnect end plate.
PRIMARY DESCRIPTION
B5 SRK-1660 SRK EXTENTION KIT BLK
SPECIFICATIONS
Barcode / UPC :
814927024793
Information
Revelations Armaments
63469 highway 25 north
Smithville , MS 38870