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Cross Machine Tool (CMT) Tactical UPUR - 3A Billet Upper Receiver - Side Charger

AR-15 Stripped Upper Receiver

Out of stock

Cross Machine Tool (CMT) Tactical UPUR - 3A Billet Upper Receiver - Side Charger


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


Specifically designed to work with Young Manufacturing side charging carriers and may not work with other manufacturer's carriers.

More Information
Product Type AR-15 Stripped Upper Receiver
Manufacturer Cross Machine Tool (CMT)
Option AR-15

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