Quick view UDR-15 3G Style 1 Universal Upper Receiver The F-1 Firearms UDR-15 Universal Upper Receiver is the best of both worlds. The upper receiver is made with 7075-T6 aircraft quality domestic Aluminum ensuring quality and offers the signature F-1 Firearms 3G skeletonizing for reduced weight and... $275.00 Add to Cart
Quick view UDR-15 3G Style 2 Universal Upper Receiver The F-1 Firearms UDR-15 3G Style 2 Universal Upper Receiver has newly designed skeletonizing and a scalloped MIL-SPEC 1913 Picatinny rail. This receiver is made with 7075-T6 aircraft quality domestic aluminum, ensuring quality while the new F-1... $275.00 Add to Cart
Quick view Lefty UDR-15 3G Style 2 Universal Upper Receiver The F-1 Firearms Lefty UDR-15 3G Style 2 Universal Upper Receiver brings our new skeletonizing to the left-handed shooter market. The universal upper receiver is made with 7075-T6 aircraft quality domestic aluminum, ensuring quality, and offers the... $275.00 Add to Cart
