Davidson Defense Shim Kit (10A) 1/2" [Qty x4 0.075mm/0.0029 inch shim, Qty x3 0.22mm/0.0086 inch shim, Qty x3 0.11mm/0.0043 inch shim, Qty x2 0.34mm/0.0138 inch shim, Qty x1 2.0mm/0.0787 inch shim]

Davidson Defense 1/2-inch Shim Kit 10A - 13 Piece, Stainless Steel, 1/2x28 Muzzle Device Timing

The Davidson Defense Shim Kit 10A is a 13-piece stainless steel shim kit for precise timing and alignment of muzzle devices on 1/2x28 threaded barrels. All shims are raw stainless steel, precision cut, corrosion resistant, and reusable. Shims are packaged in individual labeled bags. The kit includes 4 shims at 0.075mm, 3 shims at 0.11mm, 3 shims at 0.22mm, 2 shims at 0.34mm, and 1 shim at 2.00mm.

Key Features

• Stainless steel construction, raw stainless finish
• 1/2x28 threaded barrel compatible
• 13-piece kit
• 4 shims at 0.075mm and 0.0029 inch
• 3 shims at 0.11mm and 0.0043 inch
• 3 shims at 0.22mm and 0.0086 inch
• 2 shims at 0.34mm and 0.0138 inch
• 1 shim at 2.00mm and 0.0787 inch
• Precision cut thin profile
• Corrosion resistant
• Reusable
• Individual labeled bag packaging
• Muzzle brake, compensator, and suppressor alignment compatible

Perfect For

• Builders timing muzzle devices on 1/2x28 threaded barrels to a specific clocking position
• Shooters aligning Plan B Radial Hole Brakes or other radially ported muzzle devices to the correct rotational orientation on 1/2x28 barrels
• Builders setting correct suppressor mount timing on 1/2x28 threaded barrels

Shim Kit Purpose

Muzzle device timing shims are used to achieve correct rotational alignment when a threaded muzzle device needs to stop at a specific clocking position after being torqued to spec. Without shims, a compensator port, radial brake port, or suppressor mount interface may not land at the intended orientation. The 10A kit covers the full range of adjustment needed for most 1/2x28 threaded barrel applications, with five distinct thicknesses that can be combined to reach the precise gap required between the barrel shoulder and the muzzle device.

Plan B and Suppressor Applications

The Plan B Radial Hole Brake relies on correct rotational timing to ensure the radial ports align properly and the suppressor interface indexes to the intended position. This shim kit provides the adjustment range needed to time Plan B muzzle devices and compatible suppressor mounts on 1/2x28 threaded barrels. The included range of thicknesses covers fine adjustments as well as larger gap corrections in a single kit, making it a practical addition to any build using a radially ported muzzle device or suppressor mount on a 1/2x28 threaded barrel.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.