Spearhead PCC Carbine AR-9 Muzzle Brake 1/2x28

Spearhead PCC Carbine AR-9 Muzzle Brake 1/2x28

The Spearhead PCC AR-9 Muzzle Brake (1/2x28) is precision-machined for pistol caliber carbines and AR-9 platforms. Its proprietary true 2-baffle design uses 90° radial ports that intersect to form expansion chambers — delivering maximum recoil reduction with zero concussion blowback. Equal gas distribution on all sides means faster follow-up shots and quicker target reacquisition.

Specifications

• Thread Pitch: 1/2x28
• Diameter: .840" (back-tapered to .800" for flush fit on Ruger PC Carbine)
• Length: 1.750" (adds only 1.125" forward of muzzle)
• Weight: 50g / 1.764 oz
• Material: 17-4 PH Stainless Steel — exceptional corrosion resistance and strength
• Includes: Tensioning key for solid lockup — no strap wrenches needed

Installation

1. Ensure firearm is completely unloaded
2. Remove factory thread protector and any O-ring on muzzle threads
3. Install muzzle brake and hand-tighten using the included tensioning key (apply to ports near the crown)
4. Remove tensioning key after tightening