B5 Srk Extention Kit Blk-SRK-1660

B5 Systems

Gun Stuff/Rifle Parts/Buffer
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MSRP: $183.54
$128.95
(You save  $54.59 )
B5SRK-1660
814927024793
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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.