Bev Fitchett's Guns Magazine

Muzzle Brake Installation

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NOTE

TIME REFERENCES ARE GIVEN AS VIEWED STANDING BEHIND RIFLE.

(1) Screw the muzzle brake onto the barrel without using any shims. The goal is to hand-tighten it so that when standing behind it, it is oriented at an 10 o'clock—4 o'clock position with front sight facing upwards.

(2) If not properly aligned, (past the 10 o'clock position) use shims as necessary to ensure proper angle when hand tightened.

Figure 2-31. Aligning muzzle brake

Figure 2-31. Aligning muzzle brake

(3) Use a 2 lb (1 kg) dead blow hammer and strike the left side of the muzzle brake to align it in the proper - 9 o'clock to 3 o'clock - orientation. See Figure 2-32a.

9:00

(Pngper a" ¡flnmnfi'j Figure 2-32a. Proper alignment of muzzle brake

3:00

(Pngper a" ¡flnmnfi'j Figure 2-32a. Proper alignment of muzzle brake

(4) Insert the muzzle brake washers and muzzle brake screws.

(5) Tighten the muzzle brake screws with a torque wrench to 88-95 in-lb (10-10.8 N-m).

Insert muzzle brakescrews

Insert nuzzle brake washers

Figure 2-32b. Installing muzzle brake screws and washers

Insert nuzzle brake washers

Figure 2-32b. Installing muzzle brake screws and washers

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