Any You guys change out upper handguard with gas tube?

Thanx - Mark

Are you wanting to know how to remove the whole assembly or just the handguard?

Bradd

Easy and simple. Remove upper cover and bolt carrier assembly. Rotate the hinge lock on the RH side of the rear sight to its null position. You will be able to see a flat spot on the through shaft of that lock. When your at that point, lift up on the aft end of the upper gas tube. If you need to remove the wood from the tube, clamp the gas tube on its flat end in a vise, and rotate the upper handguard 180 degrees around the gas tube and it will come loose from the tube.

Sometimes the handguard is pretty tight around the gas tube.  If it's wood, be careful because you can snap/break while twisting.  Been there, done that, got the tshirt.....

KF