Really no need to adjust the gas. I have had 180's since '85 and 180b's for awhile and never encountered a need to adjust. I might not shoot as much as some of you guys what with running my shop but I usually hammer out about 500 rounds a week through my various rifles.Weapontech said:Right........it has a gas piston configuration. It releases the bolt carrier, so impingement delay for the bolt is not required, theirfore....no gas rings on bolt; gotcha. Nice! I completely forgot the AR 180b used a short-stroke gas piston; that is one big plus.
Is it adjustable, or any after market retrofit to make it adjustable?