AR 15 CMT UPUR-3A Billet Upper ( Side and Rear Charged)

Product Code: AR 15 CMT UPUR-3A Billet Upper
Availability: In Stock
Price: $168.99
   - OR -   
You may order a maximum of 1 per order.

The Cross Machine Tool Ultra Precision Upper Receiver Part# UPUR-3A Right Side/Rear Charged Upper  is the perfect Mate to your UHP-15 lower receiver or would also be a great match with any Mil-Spec lower. The UPUR-3A is machined from Billet 7075 T6 Aluminum unlike the more commonly used 6061. Using the 7075 T6 aluminum gives the UPUR-3A a 65% increase in strength & rigidity over 6061 aluminum receivers. The UPUR-3A 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-3A is designed for increased function, performance & to provide an advanced modern appearance & feel to the AR15 platform weapon system. The UPUR-3A 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
  • Precision Carrier bore diameter to aid long range accuracy performance
  • Ejection Port sized for compatibility with 458 SOCOM rifle builds with no additional machining required on ejection port
  • Weighs 7.7 ozs
  • Lifetime warranty against manufacture defects
  • Compatible with "Tactical Link" Enhanced Battery Assist Lever
  • NO forward assist, Shell deflector & dust cover
  • Compatible with commonly available Right Side charged  BCG's from Young MFG and Bear Creek Arsenal
  • Provides dual charging ability with use of traditional Mil-spec charging handle and a right side charged BCG
  • M4 feed ramps


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

Please read before assembly- ASSEMBLY NOTES


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