06-03-2020, 03:45 PM
I'd be cautious about using a lightweight carrier with a carbine gas system on that short barrel. With the carbine gas port, you'll be seeing pretty high pressures coming through your gas system that will cycle a lightweight carrier harder than a standard weight carrier. You'll need to throttle the gas system down with an adjustable gas block or an adjustable gas key on your carrier (see Bootleg or Rubber City Armory) to get it running smoothly. It can be done, but it will probably take a little extra effort to keep it from being overgassed. It seems like a lot of effort to save a few ounces -- but if your goal is a super light build, then it can be done.