JG AUG Builds Advice

[Boo-Sabum Ben]

Hi all, looking to build a couple of AUGs with JGs platform, but haven’t touched one apart from the A3 years ago (10+)

looking for advice on the outer barrel changeability. The assembly as well as the actual barrel. For example, does the outer barrel from the A4 swap over to the A2?

also, one of them I’d want to set as semi only, on a mechanical basis (not a fan of overly complicated midgets) is this possible by some form of blocking the selector plate from moving? Since the fire selector is in the trigger I’m not sure how this would work!

also, JGs carry handle scope, just how garbage is it for using as a DMR?

thanks!

[tackle]

Pm inbound