F-1 Firearms UDR-15-3G Billet 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 aesthetics. This upper receiver is also universal which makes it compatible with any MIL-SPEC lower out there.

Specs:

• UDR-15-3G universal upper receiver
• Manufactured from high grade 7075-T6 billet aluminum
• Unnecessary surfaces milled out for lightest reliable configuration
• Black - Type III Class 2 hard anodizing
• Colors - Type II hard anodizing
• F-1 Firearms 100% Product Guarantee
• Weight 6.7oz