11-24-2013, 08:22 PM
LRRPF52, thank you. If I read this correctly, the rear shoulder of the gas block journal starts .250" before the gas port location as the dimensions progresses to the muzzle? Typicaly, how long is the average gas block journal? Do these dimensions "start" at the face of the upper, barrel extension shoulder or what? Is there any suggested port size for an adjustable gas block? What about the dimensions for a CLGS?
