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CMT Tact UPUR - 3A Billet Upper Receiver - Side Charger

CMT Tact UPUR - 3A Billet Upper Receiver - Side Charger

Availability: In stock




The Cross Machine Tool Ultra Precision Upper Receiver Part# UPUR-3A Right Side 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
  •     Designed for use with Young MFG National Match right side charged BCG (Not Included)
  •     Can also be used with traditional Mil-spec charging handle
  •     M4 feed ramps

Additional Info

Additional Info

Manufacturer CMT
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (3)

No commentReview by
No comment (Posted on 4/13/2017)
Great Upper but no BCGs!Review by
This is a beautiful well machined receiver. However the Young MFG BCG it uses has been out of stock everywhere for well over 6 months. Hopefully they will be available again soon, I am looking forward to finishing my build. (Posted on 6/22/2016)
Ordered twoReview by
Best bullet side charge upper,bore tight and finished perfect for a combo ar75,!k! (Posted on 12/13/2015)

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