A heavy-duty block securely clamps into the magwell of the lower receiver of AR-10® / .308 cal AR-type rifles to prevent damage or movement during repair, assembly and cleaning. Double sided design fits ArmaLite®, DPMS®, Remington®, SR-25, and many other variants. Constructed of injection molded black polymer. 

• AR-10® / .308 cal AR type rifles lower receiver magazine well vise block
• Heavy duty block clamps into the magazine well of the lower receiver
• Helps to prevent damage or movement during repair, assembly and cleaning
• Double sided design fits Armalite®, DPMS®, Remington®, SR-25, and many other AR type rifles
• Made of injection molded black polymer
• Made in USA