In stock
LUTH-AR FK-A2 COMPLETE A2 RIFLE FURN KIT BLK
Loading Gun WiseLoading Gun WiseB5 Systems
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.
Pricing
$128.95
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