4% off
Specifications
- Brand
- B5 Systems
- Weight
- 0.81 lbs
- UPC
- 814927024793
- SKU
- RSR-B5SRK-1660
Details
Product details
The Sierra K Receiver Extension Kit is the proprietary mounting system for the Sierra K Buttstock. All parts are made of mil-spec materials and finishes and proudly Made In The USA.
- Reduced-length 5-position Receiver Extension Constructed of 7075 Aluminum.
- Includes a Short Heavy Buffer (3.5 oz), Extra Power Spring, Castle Nut and QD End Plate.
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