Maintenance Instructions

10044S

Colt Canada Proprietary 3-2-9 2005-09-20

DO NOT clamp the front sight or upper receiver assembly at any point during removal or

disassembly of the barrel assembly, as damage or misalignment of these components

may result.

(1) Clamp the barrel in a vise equipped with vise jaw caps to ensure an adequate grip

without damage to the barrel; and

DO NOT use a torque wrench for loosening the barrel nut. Using a torque wrench to

loosen the barrel nut may cause damage to the torque wrench.

(2) Using the combination wrench and a 1/2 inch drive ratchet, unscrew the barrel nut

assembly in a counter-clockwise direction, as viewed from the front. See Figure 3-2-14.

Ensure that all three drive pins of the combination wrench are evenly engaged in the

notches of the barrel nut. The combination wrench must be held fully rearward against the

pressure of the handguard slip ring spring. Failure to keep pressure against the combination

wrench may allow the drive pins to slip out of the notches causing damage to the barrel nut.

g. Separate the barrel assembly and upper receiver by pulling rearward on the upper

receiver. See Figure 3-2-15.

Figure 3-2-13 Removing the LSW Gas Tube

1. GAS PIN TUBE

2. TAPERED PIN

3. FRONT SIGHT