AR 15 CMT UPUR-4 Billet Upper- Slick Side With Dust Cover port

Product Code: AR 15 CMT UPUR-4 Billet Upper
Availability: In Stock
Price: $178.00
   - OR -   
You may order a maximum of 4 per order.

The Cross Machine Tool Ultra Precision Upper Receiver Part# UPUR-4 Slick Side upper with Dust Cover port is the perfect Mate to your UHP-15 lower receiver or would also be a great match with any Mil-Spec lower. The UPUR-4 is machined from Billet 7075 T6 Aluminum unlike the more commonly used 6061. Using the 7075 T6 aluminum gives the UPUR-4 a 65% increase in strength & rigidity over 6061 aluminum receivers. The UPUR-4 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-4 is designed for increased function, performance & to provide an advanced modern appearance & feel to the AR15 platform weapon system. The UPUR-4 is a Precision upper great for a Precision long range rifle build or for a more minimalistic build approach.


  • 5 axis machined from 7075 T6 billet
  • Engraved “T” numbers
  • 1913 picatinny Rail flat top
  • Mil Spec Type III class II hard coat anodized Black
  • Increased wall thickness for added rigidity
  • Compatible with Mil spec parts
  • Compatible with most aftermarket handguard/rail systems
  • Weighs 7.5 ozs
  • Lifetime warranty against manufacture defects
  • Compatible with "Tactical Link" Enhanced Battery Assist Lever
  • Does include dust cover port machined.
  • NO forward assist or Shell deflector
  •  M4 feed ramps


Tn. Residents will have 9.75% sales tax added to order.

Please read before assembly- ASSEMBLY NOTES


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