Long SRX Flash Hider. Designed specifically for 5.56 x 45mm rifles with a 1/2-28 thread, this flash hider effectively minimizes muzzle flash, keeping your line of sight clear and maintaining your focus on the target. The included shim kit ensures a perfect fit and easy installation, while the sleek black finish complements any rifle setup. Ideal for both novice shooters and experienced markspeople, it provides a subtle yet significant improvement to your shooting experience. Perfect for an evening at the range, just as Mark discovered when his shots became noticeably more accurate during his twilight shooting session."