Regular carbine or midlength. I will be using your FFS barrel mount. Am I correct to assume this is a gas block too?
Thanks in advance,
Gary
Heeeeeeeeeeeellllllllllllloooooooooo.................................

Sampson,
Why do you pay to maintain this forum if you never visit it?

"Better to light up a single terrorist then sit and curse the darkness."

Sorry for the delayed reply, We were very busy with SHOT and dealing with orders after the show. The MRFS-M-EX-EBR is for a mid length gas system. Use a 16 or 18" barrel.
Scott