Installing quad rail on pinned 14.5 upper

Laubage · Nov 19, 2010

Do you guys know if I would be able to install a FF quad rail on a 14.5" upper that has a pinned flash hider? I'm not sure how you would do it, but I don't know much about gunsmithing AR's. I just wanted to know if I had to buy it with a quad rail or if I could buy one and configure it how I want.

Norman · Nov 19, 2010

You sure can. A few companies make FF rails that are 2 piece, so the FSB and muzzle device can stay attached.

FAL guy · Nov 19, 2010

The Samson Star-C is a great 2 piece free float rail that mounts using the stock Barrel nut. Mine is very sturdy. they come standard on severa Stag models.

awww.samson_mfg.com_mm5_graphics_00000001_AR_15_Rail_STAR_carbine.jpg

http://www.samson-mfg.com/ar-15_html/product/STAR-C.html

Laubage · Nov 19, 2010

How would you remove the D ring (I think it's called)? The part at the base of the barrel that you push on to remove the handguards?

BadKarma · Nov 19, 2010

Dremel tool and a cut off wheel will take you down to the barrel nut. Just cover up and or tape off everything around the ring and cut away. YHM makes a two piece that just replaces the stock handguards without modification, I think Midwest Industries makes one like that as well.

Glocktogo · Nov 19, 2010

The Daniel Defense Omega free float installs without removing anything and it's one of the lightest, strongest rail systems you can get. I have one on my Colt and it's tits!

KurtM · Nov 19, 2010

+1000 for the Daniels Defense set up. Great rail/Cheese grater (what I jokingly call all rail systems) set up without major rework! I have installed quite a few for guys. KurtM

Beercules · Nov 19, 2010

There is also nothing stopping you from removing (i.e. cutting) the pinned flash suppressor and FSB to install a FF rail as normal. You will simply have to replace/pin/weld a new flash suppressor on the barrel. Adco can do all of this for you.

http://www.adcofirearms.com/

GlocksInMySocks · Nov 19, 2010

It all depends on the rail. I know for a fact that you can't do that with Larue rails.

Norman · Nov 20, 2010

Beercules said:
There is also nothing stopping you from removing (i.e. cutting) the pinned flash suppressor and FSB to install a FF rail as normal. You will simply have to replace/pin/weld a new flash suppressor on the barrel. Adco can do all of this for you.

http://www.adcofirearms.com/

True, but that's a waste when some of the best rails don't require it, IMHO.

Installing quad rail on pinned 14.5 upper

Laubage

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Beercules

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