The Cross Machine Tool Ultra Precision Upper Receiver Part# UPUR-1 is the perfect Mate to your UHP-15 lower receiver or would also be a great match with any Mil-Spec lower. The UPUR-1 is machined from Billet 7075 T6 Aluminum unlike the more commonly used 6061. Using the 7075 T6 aluminum gives the UP-UR a 65% increase in strength & rigidity over 6061 aluminum receivers. The UPUR-1 is machined on a 5 Axis machining Center to reduce the number of operations/setups required to complete. This machining process allows the highest possible accuracy to be obtained over the traditional 3 or 4 Axis machining method. The UPUR-1 is designed for increased function, performance & to provide an advanced modern appearance & feel to the AR15 platform weapon system.
"Ammo Grade" products have minor cosmetic blemishes. Availability is irregular since we donot produce Ammo Grade products on purpose.
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
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
Ammo Grade products have cosmetic blemishes, more info on Ammo Grade products at link below