Quote:
Originally Posted by sloughfoot  After removing the receiver cover, operating handle, and bolt carrier and bolt, rotate the gas cylinder lock to its uppermost position and lift the rear of the handguard to remove the gas cylinder tube and the gas piston. The tube can be upended and the piston will slide out.
For the trigger group; Depress the catch located behind the loop of the trigger guard and pull the trigger group down and out of the rifle. The safety must be in the safe position before the catch can be depressed.
From Army TC 9-56.... I hope this helps. |
These steps are sometimes easier said than done.
I had a chicom that required a large brass pin and hammer to remove the trigger group.
A 12ga shotgun swab will clean the gas tube.
Do not leave any excess oil in the gas tube it should be very dry when reassembled or it will collect carbon.
Beware of the operating rod and spring when removing the gas tube.
It will shoot across the room like a scared rabbit.
Wrapping a towel loosely around the area will help contain the op-rod and spring. You will have to wiggly the gas tube while pulling up on it with some rifles with a tighter fitting gas tube.