A Superior Grip is achieved with our Patented hexagon surface pattern. Our Anti Tilt Follower was designed to help stop residue particles from entering back into your rifle. Tool Free Design, no tools or bullet tips needed to disassemble and clean the inside of your AR-15 magazine. 5.56 x 45 / .223 Remington, 300AAC Blackout approved. 458 SOCOM and .50 Beowulf tested working by an independent manufacturer.