B5 Systems
B5 Systems SRK Extension Kit, Black - SRK - 1660
$128.99
$143.99
You save $15 (10%)
Sold by: Palmetto State Armory
In Stock at Palmetto State Armory
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Product Details
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. All parts are made of mil-spec materials and finishes and proudly Made In The USA.
- Brand
- B5 Systems
- SKU
- 51655190773