FEATURES-Matte black anodized finish-Machined from billet 6061 aluminum-Works with both AR15 & AR10 lower receivers-Compatible with KNS Pins -NOT recommended for use with BAD lever-Four times larger than factory magazine buttons-Large surface area for quick magazine reloads-Easy to reach-Ergonomic design-Release magazine without changing grip or position-Contoured for positive depression & reduced slip-Weight: 0.15 oz. (including button, paddle & screws)-All parts included-Easy drop-in installationPRODUCT SPECIFICATIONS:Dimension 1.00 X 3.15 X 4.65Height 1.0000Width 3.1500Length 4.6500TYPE/COLOR AR-15 XMR EXTENDED MAG RELEASESIZE/FINISH BLACKMATERIAL ALUMINUMAR-15 ACCESSORY YOTHER FEATURES: COMES WITH SCREW AND BUTTON, .78" WIDE BY .94" LONG, WORKS WITH KNS PINSNO DIRECT SHIP TO CALIFORNIA