This ERGO Armorer Block is one of the most useful maintenance accessories available for an AR-15. Simply bolt or clamp securely to a bench or other work surface, place an AR rifle onto the block inside the magazine well and the rifle is held in place for cleaning, maintenance or storage.

• 1-piece rugged design
• Weight: 4.3oz
• 6 1/8” Tall X 4 5/16” Long (at the Base) X 2” Wide (at the Base)
• 1/4” Mounting Holes