The Strike Industries SI-BS-NATO-BK Blast Shield A2 Flash Hider enhances performance and safety for your A2 Birdcage Flash Hider. Engineered for a precise fit, this NATO Blastguard Assembly requires no modifications, making it an essential addition to your firearm setup. Directly mounts to any mil-spec bird cage comp Safety locking fork prevents accidental disengagement Compact dimensions: 2.45" (L) x 1.56" (W) x 1.56" (H) Weighs only 9.15oz for optimal balance Compatible with A2 Birdcage Muzzle Devices (5.56mm & 9mm) Elevate your shooting experience with the Strike Industries SI-BS-NATO-BK Blast Shield, ensuring reliability with every shot.