Gas System in 6.5 CM unsupressed vs supressed May 18, 2020, 06:25:14 PM I'm starting my first build and think I definitely should have chosen an easier rifle to start with but im too far in now. I have gotten everything except for BCG, buffer, and gas block because I plan on suppressing my 6.5 CM in the future and know there is a difference in gas pressure in suppressed vs unsuppressed. As far as gas blocks I'm fairly confident I need to get an adjustable one but not sure if there is a huge difference in performance between brands, I understand if you go too cheap the hole may not line up properly but other than that is there anything i should be looking for in that or the tube?. For the BCG I've been looking at the JP variable mass one but im almost thinking I should just get two different BCGs, one for running the gun suppressed and one for running the gun unsuppressed, I like some thoughts on that. lastly the buffer system, is flat wire buffer spring worth the hype? and could someone explain the reason with weighted buffer plugs! If anyone has a link to a good video on gas systems that would be awesome, I've already watched a bunch on youtube.I got the Aero precision U/L receiver set with a 24" BA fluted 6.5 CM barrel and running a drop in Rise Armament RA-434 High Performance Trigger if any of that matters. Trying to do as much research as possible before i buy any of my gas system parts.