I’m building my own carbine with a separate upper receiver and pre-assembled barrel assembly with fixed sight post. Will it be possible (with any rail brands) for me to install it as I bolt the barrel to the upper so I don’t have to remove the front sight post?
Every 1 piece rail I’ve seen requires a proprietary barrel nut, which will require removal of the front sight for installation.
Someone sells one that is a two piece design that bolts together onto the stock barrel nut once you remove the delta ring.
It is not one piece, but it will install without removing the front sight and it does float the barrel.
I think this is the best you are going to get.
FWIW, I would remove the front sight as it is only two pins. Install everything and then slide the front sight assembly back on and bang the pins back in.
Daniel Defense (two pieces) - and you do not need to remove the delta ring assembly.
Just remove the handguards and install the DD Setup and you have a really nice free floating quad rail system.
If you mean the DD Omega rail. Their other rails do require removal of FSA.
Another manufacturer of the two piece, mentioned above, is Troy with the MRF rail.
What I think the OP is asking is if he can install the rail from the backend of the barrel since the barrel is not yet on the upper.
I am not sure if that will work, for one thing, to get at the barrel nut to tighten it, you would have to shove the rail forward out of the way and you can’t do that because it will collide with FSA. So in other words, no, it probably can’t be done that way. You are better off going with one of the rails that do not require removal of FSA.
What manufacturer made this barrel? Some FSAs are easier to remove than others. If it is fastened with Taper pins, unless you know what you are doing, getting those out will be one tough bitch kitty and it will be better just to go with a two piece rail or the DD Omega.
Yep that’s exactly what I was talking about if there was room on any of them to slide the guard forward and tighten the barrel nut. My barrel is a Colt.
Oh well, no biggie. I decided on the Troy anyway. They just reduced the price.