The ArmaspecA(R) B2 Extended Skeletonized Mag Release is designed to extend the length or your AR-15 or LR-308's factory button-making it easier to release an empty mag without changing grip position. The B2 is made from aluminum and features a serrated design for positive depression and reduced slip. Installation is easy, and it's compatible with most AR-15 and LR-308 receivers. Compatible with BAD Lever and similar devices Large surface area for quick magazine reloads Easy-to-reach ergonomic design Serrated for positive depression and reduced slip Easy drop-in installation Compatible with most AR-15 and LR-308 receivers Made in USA Includes B2 Release, (2) mag release buttons, (4) set screws, and hex key Order today!