ProMag AR-10 Lower Receiver Magazine Well Polymer Vise Block

The ProMagA(R) AR-10 Lower Receiver Magazine Well Polymer Vise Block makes routine maintenance and cleaning your AR-10 rifle so much easier. Compatible with AR-10 and .308 CAL AR type rifle lower receivers, this heavy-duty mag well block clamps into your rifle's mag well to help prevent damage or movement during repairs, assembly, and cleaning. Featuring injection-molded polymer construction for dependable strength, this magazine well block is the perfect addition to any workbench. Made in USA.