Thanks for the feedback much appreciated! All I need now is someone to thread the barrel.It will cycle fine! A can increases back pressure, so don't worry. Besides the M4 was designed to run over gassed so it would function in all types of weather
Send me a PM, I might be able to help you with that. I might know a guy or two from Benelli and a shop... we have been working on all sorts of M4 "things" hint hintThanks for the feedback much appreciated! All I need now is someone to thread the barrel.