I want to build a SBR version of the Colt Enhanced Patrol Rifle.
Gonna start with a Colt 6933, the B5 SOPMOD stock is of course easy.
But I need to know which Centurion Arms MLOK rail I need. I’d like it to complete seat behind the front sight, sorta like a Colt 6945. I’ve seen rails where they extend under the front sight and that’s not what I want. Trying to keep this one lightweight.
I don’t think what you want exists. The shortest MLOK rail Centurion offers is 9.5 in that configuration (not wrapping around the FSP.) You would need something in the 7 inch range IIRC to make that happen.
Do you want to build just for the fun of it or because you can’t find one? If it’s the latter, Arms Unlimited has them. But, it doesn’t seem to meet your front sight requirement.
https://armsunlimited.com/colt-6933epr-m4-commando-enhanced-patrol-rifle/
Are you trying to keep the fsb? I tried with a centurion rail many years ago and just didn’t like the results. Something about how it didn’t perfectly align bugged me. Ended up giving up on the fixed sight and went with a bcm rail.
Im a bit jelly, I’ve always wanted a 6933. Good luck with your build.
PB
They make a 7 inch quad (which sounds like you know that) but he wants MLOK and the shortest they go on that is 9.5 inches.
I just learned this exists while searching, this will be my easy button solution. I just have to wait until one of my suppliers actually has one.
I think Arms Unlimited might be the only source. I searched, but can’t find it anywhere else. The same is true for the M5 SBR’s. Arms Unlimited seems to get Colt stuff that isn’t offered by others for some reason.
G&R also has them as well as about 4 other places. But it’s hard to pay retail when you are a FFL / SOT.