Your cart is empty
Mfg Item #: SRK-1660
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.
| Shipping Length | 1.75 |
|---|
Are you 18 years of age or older?
At SG3 Gunworks, LLC, we comply with all federal, state, and local laws regarding the sale of firearms, magazines, ammunition, and accessories.
It is the buyer’s responsibility to know and follow all applicable laws in their area before placing an order. We do not ship products to locations where they are prohibited, and any such orders will be canceled.
By purchasing from SG3 Gunworks, LLC, you certify that you are legally allowed to own the items ordered and will use them lawfully. Please review your state and local laws or contact local authorities if you are unsure about any restrictions.
*A restocking fee may apply to any orders that do not comply with federal, state, or local regulations.