F Radian Weapons Model 1 Complete Upper Receiver, .223 Wylde, 16 in Barrel, Custom, Mid Length, 1-8 Twist, 1/2x28 Thread, M-LOK, Deadair Flash Hider, Radian Brown, R0472 $2,029.95 R0472 show more like this Free Shipping on most orders over $49 Optics Planet