Shop › MAG AMEND2 AR15 300BLK 30RD M3 BLK MAG AMEND2 AR15 300BLK 30RD M3 BLK $13.99 Amend2 Magazine, Mod 3, 300 Blackout, 30 Rounds, Fits AR-15 Rifles, Polymer, Black AM300MOD3BLK30 Quantity: Add To Cart Added! Amend2 Magazine, Mod 3, 300 Blackout, 30 Rounds, Fits AR-15 Rifles, Polymer, Black AM300MOD3BLK30