223 QRB Gen-3 Receiver Plate Upgrade
The 223 QRB Gen-3 Receiver Plate upgrade works with Gen-1, Gen-2, and the Military 2-pin QRB Units!
The 223 QRB Gen-3 Receiver Plate has an additional set screw.
The QRB Kit can only be used on Barrels with a maximum outside diameter of 0.985" and Free Float Hand Guards with a maximum width of 2.0" Also the QRB will add 1.5" to the length of your free floating hand guard.
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