The Dead Air Muzzle Device Shim Kit (Dead Air Silencers part no. DA004) is a set of three shims sized for M18 threaded muzzle devices, built to get precise, repeatable timing when you’re clocking a brake, comp, or mount into position. Dead Air includes three different shim thicknesses in the kit, so you can stack the right combination to land the device exactly where you want it without over- or under-tightening. A graphic printed on the packaging identifies each shim’s thickness and features, taking the guesswork out of which one to grab first. Dead Air recommends placing the thickest shim against the barrel shoulder first, then working through thinner shims to dial in the final position.

Key Specifications

• Includes three different shim thicknesses in one kit.
• Sized for M18 threaded muzzle devices.
• Built for precise timing/clocking of a muzzle device.
• Packaging is printed with a graphic identifying each shim’s thickness.
• Install guidance: place the thickest shim against the barrel shoulder first.
• Ships at a nearly weightless 0.02 lb.

Frequently Asked Questions

What thread size is this shim kit for? It’s sized for M18 threaded muzzle devices.

How many shims are included? The kit includes three different shim thicknesses.

Which shim goes on first? Dead Air recommends placing the thickest shim against the barrel shoulder first.

Buy the Dead Air Muzzle Device Shim Kit, M18

Getting a muzzle brake or comp clocked exactly right takes the correct shim stack, and Dead Air’s kit gives you three thicknesses to dial it in. Order it from our Dead Air Silencers lineup, part of our full selection of muzzle device accessories, from our Lubbock, Texas gun shop, and it ships fast to your door.