- Heavy-duty block securely clamps into the magwell of the lower receiver of AR-10 / .308cal AR-type rifles
- Prevent damage or movement during repair, assembly and cleaning
- Double sided design fits Armalite, DPMS, Remington, SR-25, and many other variants
- Constructed of impact resistant, glass-filled nylon
- Black Finish
- Made in U.S.A.
- Limited Lifetime Warranty