I have a carbine length 2 piece free float quad rail from Midwest Industies in good condition. It locks up extremely solid and matches up to the upper receiver perfectly with no gap. All you have to do is cut off the delta ring and use the original barrel nut, took me 5 minutes to install. Asking $100 FIRM SOLD
P.S. missing one of the screws on the front of the quad rail but has 0 effect on the rail.
P.S. missing one of the screws on the front of the quad rail but has 0 effect on the rail.

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