Please do not build up the front handguard with shims, glue or anything else. The heat from firing will cause the gas cylinder to bind against the front handugard, cracking it.
It is made to have some play. I would leave it as is.
Match built rifles have the front handguard screwed to the rear handgard area, leaving a bit of a gap between the rear of the gas cylinder and the wood.
HTH
It is made to have some play. I would leave it as is.
Match built rifles have the front handguard screwed to the rear handgard area, leaving a bit of a gap between the rear of the gas cylinder and the wood.
HTH
