ARMASPEC B2 EXTENDED MAG RELEASE SKELETONIZED BLACK FEATURES: Compatible with BAD Lever and similar devices Extend the length of the factory button for quick magazine reloads Easy to reach ergonomic design Release magazine without changing grip or position Serrated skeletonized design for positive depression and reduced slip Easy drop-in installation Compatible with most AR-15 and LR-308 receivers Made in U.S.A.