Great idea but I believe that a threaded barrel together with a pistol grip meets the "substantially identical" test in NJ. Brake has to be pinned or welded before the barreled upper can be sold in New Jersey. Crowned barrel is ok.
Hello all...just stumbled across this site on Google...wow who would have thought, a NJ gun forum. Looking forward to some fun and education, relatively new to the shooting sport but have had a blast learning and shooting so far.