Cross Machine Tool UPUR-1A Big Bore Billet AR-15 Upper Receiver - UPUR-1A

Looking for something to change up the standard AR-15 formula? This Cross Machine Tool Ultra Precision Upper Receiver is designed for a .458 SOCOM build by enlarging the ejection port and increasing the wall thickness for greater durability. Still compatible with Mil-Spec AR-15 lowers, the UPUR-1A is machined from a billet of 7075-T6 aluminum allowing for a custom look and precise dimensions and is much stronger than traditional 6061 aluminum. This Billet AR-15 upper receiver features a unique design with a forward assist slot and shell deflector and is compatible with Mil-Spec parts. The bolt carrier bore is precision machined to ensure smooth and consistent function with the BCG. The flat top picatinny rail features T-marks to keep track of your optic position if you remove it often and the entire receiver is hardcoat anodized for additional corrosion resistance. This CMT Stripped AR-15 Upper Receiver is compatible with a wide range of parts, so you can build your dream rifle.

Features:

• 5 axis machined from 7075 T6 billet
• M4 feed ramps
• Engraved “T” numbers
• 1913 picatinny Rail flat top
• Mil Spec Type III class II hard coat anodized Black
• Shell deflector
• Forward Assist machined into receiver
• Dust cover port machined into receiver
• Increased wall thickness for added rigidity
• Compatible with Mil spec parts
• Compatible with most aftermarket handguard/rail systems
• Lifetime warranty against manufacture defects
• Comes stripped without dust cover & forward assist assembly
• Compatible with “Tactical Link” Enhanced Battery Assist Lever

Cross Machine Tool Co., utilizing the latest machining technologies, offers high quality products that you’ll be excited to own. Cross Machine Tool is a veteran owned business that takes pride in manufacturing products you will own. CMT products exceed military standards, so you can build the best AR style rifle possible.