Ultimate Arms Gear American Patriot Flag Magwell Slaps AR15/M4/M16.223 5.56, Stealth Black Easy peel and stick application, as slap is pre-cut Our premium US made slaps offer superior UV protection, chemical resistance, protection from scuffs and scrapes and are completely waterproof Non-reflective matte finish & no interference Leave zero residues when removed, they can be placed over each other if need be for an immediate mission profile change