Knight's ambidextrous mag release offers a large, easy-to-find off-side release lever that helps you drop the mag reliably and consistently from an unorthodox hand position. The long, wide off-side lever has clean, deep serrations on the control pad, plus the correct angle to provide the right leverage to easily drop the mag - but only when you want to. Easy, drop-in installation on any standard mil-spec AR-15 lower receiver, and requires zero permanent modifications to your rifle. Any time you need to switch back to the original factory button, the KAC unit can be swapped out almost instantly