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Cross Machine Tool AR15 Billet Upper Receiver - UPUR1

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$187.00
Stripped - Capable Of Accepting A Port Door - Forward Assist Compatible - Has A Shell Deflector
Item Id: CMT-UPUR1-BLK
In Stock

The Cross Machine Tool Ultra Precision Upper Receiver is the perfect 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 UPUR a 65% increase in strength and 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 and feel to the AR15 platform weapon system. For complete and current information on this item please see the manufacturer's website.

Specifications:
  •     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
  •     Shell deflector
  •     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 or forward assist assembly
  •     Designed and machined to be compatible with Tactical Link's Enhanced Battery Assist Lever

Summary of the differences of Cross Machine Tool's Uppers:

UPUR1

  • Has a shell deflector
  • Is capable of accepting a port door (not included)
  • Is ported for a forward assist (not included)
  • Has M4 feed ramps

UPUR2

  • Has a shell deflector
  • Is capable of accepting a port door (not included)
  • Is not ported for a forward assist (slick side)
  • Has M4 feed ramps

UPUR3

  • Does not have a shell deflector (slick side)
  • Is not capable of accepting a port door
  • Is not ported for a forward assist (slick side)
  • Is their only upper that is compatible with 458 SOCOM and 9mm ammo)
  • Has M4 feed ramps

UPUR4

  • Does not have a shell deflector (slick side)
  • Is capable of accepting a port door (not included)
  • Is not ported for a forward assist (slick side)
  • Has M4 feed ramps

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Made in USA Made in USA

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