The SL-7 and HK 770 are deemed OK, and those are both roller delayed. The SL-7 is restricted because the barrel is a fraction of an inch too short.
Not that the firearms lab is ever consistent, just food for thought.
Actually?
probably never going to happen but i would be in so any size version
Shouldn't be rocket surgery to lengthen the barrel on a roller delayed gun?
A2 flash hider aficionado.
It 'looks' like an AR lower, and a roller-delayed upper ... I wouldn't bet on it getting through the lab.
Yea cautiously optimistic. A Rollerdelayed NR 5.56 is my dream gun at this point. (Actual dream is an H&K G41, but even in the states that’s a pipe dream)