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.
- Manufacturer:
- B5 Systems
- Manufacturer Part No.:
- SRK-1660
- Model:
- Sierra K
- Model**:
- Extension Kit
- Type:
- Buffer Tube Complete Assembly
- Sub Category:
- Stocks & Buffer Tubes
- Color:
- Black
