Cross Machine Tool UPUR-4 Billet AR-15 Upper Receiver - Slick Side

Manufactured by Cross Machine Tool
SKU: UPUR-4
MPN: UPUR-4
Manufactured by Cross Machine Tool
2 Reviews
$140.00

Out of Stock

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Details

Details

Looking for something to change up the standard AR-15 formula? This Cross Machine Tool Ultra Precision Upper Receiver is designed for AR-15 rifles is compatible with Mil-Spec lower receivers. The UPUR-4 is machined from a billet of 7075-T6 aluminum allowing for a custom look and precise dimensions and is much stronger than traditional 6061 aluminum. This Billet AR-15 upper receiver features a slick side design without the forward assist and is machined for use with Mil-Spec dust covers. It is machined with an increased wall thickness for rigidity and the carrier bore diameter is precision cut to ensure consistent and smooth function. The flat top picatinny rail features T-marks to keep track of your optic position if you remove it often and is compatible with standard charging handles. This CMT Slick Side AR-15 Upper Receiver is compatible with a wide range of parts, so you can build your dream rifle.

Features:
  • Machined from billet 7075-T6 aluminum
  • Hardcoat anodized
  • Engraved T-marks and 1913 picatinny rail
  • Increased wall thickness
  • Precision cut carrier bore diameter
  • No forward assist or shell deflector
  • M4 feed ramps
  • Compatible with Mil-Spec lowers and parts

Cross Machine Tool Co., utilizing the latest machining technologies, offers high quality products that you’ll be excited to own. Cross Machine Tool is a veteran owned business that takes pride in manufacturing products you will own. CMT products exceed military standards, so you can build the best AR style rifle possible.
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Specifications

BrandCross Machine Tool
ColorBlack
Feed RampsM4
FinishHardcoat Anodized
Forward AssistIncompatible
Port DoorAccepts Standard Port Cover
Receiver Material7075-T6 Aluminum
T MarksT-Marked
Weight7.5 oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

2 reviews

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Very Nice Upper Receiver

by -

I am very pleased since I was building with an old but new Sundevil lower and a older Noveske Key-Mod Handguard. This product matched the finish on both the Lower and Handguard perfectly. It also has the pin hole that Noveske uses to align the rail. The pivot slot was a bit tight, but was easily remedied with a little oil and working it in. It also accepted the Magpul molded dust cover perfectly.
I am very glad I chose this product and will look to Cross Machine in the future and hoping to see the non-slick side version of this show up one day.

First build

by

When I started ordering ar parts I kept getting better and better parts
So when I saw this billiet upper I had to have it to match the cross billiet lower
I've been a mechanic as long as I can remember and seen a lot of good parts
But these were so good, the best I can remember. I love this company and hope the prices stay were there at
But also are always going to be around