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.
| UPC | 814927024793 |
|---|---|
| Manufacturer | B5 Systems |
| Manufacturer Part Number | SRK-1660 |
| Color | Black |
| Model | Sierra K |
| Product Type | Buffer Tube Complete Assembly |
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