1. MAKE CERTAIN THE RIFLE CONTAINS NO CARTRIDGES AND THAT IT IS POINTING IN A SAFE DIRECTION.
2. Remove the magazine. Leave the slide in the forward position.
3. With the rifle flat on its side, apply substantial thumb pressure, with both thumbs, to the projecting underside of the handguard in the area of the retaining spring. (The spring is located underneath the circular projection on the top of the handguard.) The pressure should be applied so as to raise the rear portion of the handguard first.
4. To replace the handguard. put the forward end of the handguard under the top portion of the gas block (as far forward as possible) and squeeze the handguard down over the barrel.
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