Looking for a FSP Rail system for a pinned flash hider upper

[prez1967]

I have my M4gery upper that never gets shot. With the pinned flash hider, I'm wondering if I can get a bolt on rail system to extend past the Fixed Front Sight.

If I must have the flash hider removed, I'll be going with a different rail/gas block setup.

I appreciate the help.

[Onyx Z]

What barrel nut? The Centurion C4 is a solid rail that uses the USGI barrel nut.

[thopkins22]

What barrel nut? The Centurion C4 is a solid rail that uses the USGI barrel nut.

The C4 is an excellent rail from a company owned by an excellent American that does exactly what you're asking.

[El Cid]

I'm very pleased with my Troy and I believe they now have a Keymod version.

https://troyind.com/rail-systems-acc...ils/drop/delta

It was simple to install and took less than 10 minutes. It gives you the real estate in front of the FSB and has built in QD sling sockets on each side. You will need to remove the sling swivel under the FSB.


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[Singlestack Wonder]

Highly recommend the Daniel Defense Omega-X 12FSP. Easy to install/remove and rock solid. The attachment method is an example of great engineering design. I have several other rails from Daniel Defense including Lite and RIS II, but the last 4 rifles have gotten Omega-X (well, one BCM KMR sneeked in).

[justin_247]

Highly recommend the Daniel Defense Omega-X 12FSP. Easy to install/remove and rock solid. The attachment method is an example of great engineering design. I have several other rails from Daniel Defense including Lite and RIS II, but the last 4 rifles have gotten Omega-X (well, one BCM KMR sneeked in).

He has a pinned flash hider... unless he's already running a shorter Omega X rail that allows him to use his FSP, he cannot use any of these rails without having a smith remove the flash hider.

To the OP: the Centurion C4 FSP is what you're looking for if you want to use 1913 rails:
http://www.centurionarms.com/product-p/0609-fsp.htm

The Troy Delta is an alternate solution if you want to have a more slick handguard without all the extra rails:
https://troyind.com/rail-systems-acc...ee-float/delta

[Plumber237]

Another vote for the Centurion C4 12 FSP rails, I installed them myself earlier this year on my primary rifle, and love everything about them. If you've got a Dremel, a vice, a hole punch for the gas tube pin, and a channel lock pliers if your tube is a tough remove (my rifle doesn't have many rounds through it, so I was able to remove the tube by hand), then you won't have any issues doing a self-install.

[vigilant2]

I believe the Centurion Arms C4 12 FSP is discontinued. I have 2 carbines with them and was contemplating getting another for my other carbine. Only source I found for it was Rainier Arms, two Sundays ago they had 3 left ( I didn't have funds at the time) now they are out of stock. Centurion Arms doesn't even list it on the website anymore. Subsequent searches all come up with out of stock. The Troy delta looks good and I will probably purchase one.

[prez1967]

I appreciate the replies everyone. Looks like I need to do some research between the Centurion and Troy rails.

[zlc]

I appreciate the replies everyone. Looks like I need to do some research between the Centurion and Troy rails.

i am interested in this also, have a 6920 upper with crap surefire rail that i would like to replace. if Troy has a new keymod FSP that might be the ticket.