Rifle Gas Port Size

JStor · February 5, 2009, 3:09pm

With the tier one carbines utilizing the .063 inch gas port size, is the .093 inch size the correct diameter for a 20 inch Colt barrel? There are two different minimum sizes listed on the Maryland Shooter’s site. Thanks.

navyretired1 · February 13, 2009, 2:00am

Per my data sheet on port sizes 20" skinny barrel port size is 0.086" to 0.095". 20" 0.750" barrel size is 0.093 to 0.096. hope that helps

SingleStacker45 · February 13, 2009, 2:37am

if I remember correctly my sabre defense 20" was in the .096 range.

Mule

BravoCompanyUSA · February 13, 2009, 1:28pm

Colt M4 .063

Colt M16A2 .093

JStor · February 13, 2009, 2:28pm

Thanks guys. I was wondering what size my Colt 6700 20" had. Looks like it must be .093 then. Carbines are nice and handy, but for some reason I really enjoy shooting this rifle size AR.