Has anyone cut a Seekins SP10 barrel down to 18” and it still cycle? The 6.5cm barrels use a plus 1.5” or so gas system. I haven’t measured the gas port size. I may give it a try.
I’ll most likely leave these one alone and just cut my Seekins 6arc down fron 22” to 18”. I know this one will work for sure as Seekins made a run with 18” barrels using the same gas length and port size.