Originally Posted by jimmyp


What gas do they use for a 12.5 inch? Carbine??



There are very few using 12.5”s. Mid-length 12.5” with a correct gas port, and suppressed has proven to work very well with A1.

SOCOM has chosen 11.5” over 10.5” for the future, with the 11.5”s being standard, not 14.5”.