The IWI Left-Hand Quick-Detach Muzzle Brake (brand part no. IWSQDMB28) threads onto a 1/2×28 muzzle to reduce felt recoil and muzzle rise, while also serving as the mounting interface for a compatible IWI quick-detach suppressor. The left-hand threading keeps the brake from backing off under recoil during normal firing. Run bare, it functions as a standard muzzle brake; with a compatible IWI suppressor attached, it becomes the fast, tool-free mounting point.

Key Specifications

• Cut to a 1/2×28 thread pitch in a left-hand orientation to prevent backing off under recoil.
• Functions as a muzzle brake, reducing felt recoil and muzzle rise when run bare.
• Doubles as the quick-detach mounting interface for compatible IWI suppressors.
• Weighs approximately 3.62 ounces, adding negligible weight to the build.

Frequently Asked Questions

How is this different from the 5/8×24 version? It is cut to a 1/2×28 thread pitch instead, matching the standard thread for most 5.56 and pistol-caliber hosts.

Why is it left-hand threaded? Left-hand threading is used specifically to keep the brake from loosening under recoil during normal firing.

Buy the IWI Left-Hand Quick-Detach Muzzle Brake 1/2×28

Reduce felt recoil and set up fast suppressor mounting on your 1/2×28 host with a genuine IWI QD muzzle brake. Order it from IWI’s Class 3 parts and accessories lineup, and our Lubbock, Texas gun shop will ship it out fast.