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CMT

CMT Tact UPUR - 1LH Left Hand Eject Billet Upper Receiver

CMT Tact UPUR - 1LH Left Hand Eject Billet Upper Receiver

Availability: In stock

$151.50

Details

Details

The Cross Machine Tool Ultra Precision Upper Receiver Part# UPUR-1LH is the perfect Mate to your UHP-15 lower receiver or would also be a great match with any Mil-Spec lower. The UPUR-1LH is machined from Billet 7075 T6 Aluminum unlike the more commonly used 6061. Using the 7075 T6 aluminum gives the UP-UR a 65% increase in strength & rigidity over 6061 aluminum receivers. The UPUR-1LH 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-1LH is designed for increased function, performance & to provide an advanced modern appearance & feel to the AR15 platform weapon system. The Left Hand eject of the UPUR-1LH drastically reduces the amount of gasses exiting the chamber into the face of left handed shooters when shooting suppressed.

 

The UPUR-1LH is available for order only thru Rainier Arms

Features:

  • 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
  • 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 forward assist assembly
  • This upper does not support the use of a dust cover
  • Compatible with Stag Arms LH BCG only or comparable

MSRP - $159.50

Additional Info

Additional Info

SKU UPUR-1LH Left Eject Upper
Manufacturer CMT
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
MOA No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No

Reviews

Customer Reviews (13)

Feeling better nowReview by
Quality
Value
I haven't finished the build yet. It's a nice piece of machine work. I first tried it for fit on my Stag lower . It was very loose and sloppy. I was unhappy. Then I got my Anderson forged lower and it fits very snug and tight on it. Now I'm happy again.
When I get all the parts, get it all assembled and do some shooting, I'll know more about how much I like it. It's going to be a 6.5 Grendel
(Posted on 4/6/2017)
No commentReview by
Quality
Value
I have a friend who insists that I need an ambidextrous barrel bushing? Is there any truth to that? (Posted on 4/1/2017)
Hard Decision on rating this. Review by
Quality
Value
I'm gathering parts for my 6.5 Grendel project. This is my first part. As for aesthetics, it's a pretty piece of machine work. No tool marks, burrs, smooth even finish.
Out of curiosity I put this stripped upper on my Stag 3L. It is very sloppy. Lots of wiggle and rattle between the upper and lower. Being that this will be my first AR build . Im not sure if that matters much. Being a machinist, it bugs the crap out of me. I don't know which part is on the sloppy side of the tolerance. Could be both.
The stag BCG seems to be a little more sloppy in this upper than in the stag upper. That hard to gauge being that I have no barrel on the CMT upper .
If anyone has any advice on this, let me know.
(Posted on 3/29/2017)
No commentReview by
Quality
Value
- (Posted on 12/17/2016)
No commentReview by
Quality
Value
Excellent fit and finish. Fast shipping. I plan on buying two more. (Posted on 11/4/2016)
Design and build Review by
Quality
Value
Perfect for a lefthand build fit and finish are amazing matchs perfect with the rainier mod 3 billet lower
(Posted on 10/9/2016)
No commentReview by
Quality
Value
- (Posted on 7/10/2016)
No commentReview by
Quality
Value
- (Posted on 7/10/2016)
GreatReview by
Quality
Value
This is a great looking upper. It was delivered quick. I just switched my rightly DPMS over and was pretty quick and easy, stag left handed bolt carrier group fits great and no problems so far. (Posted on 5/27/2016)
No commentReview by
Quality
Value
Excellent quality and fit. It is far better than the Stag Arms forged upper which is more expensive. I will definitely be ordering another! (Posted on 5/24/2016)
No commentReview by
Quality
Value
As a leftie, I am really excited about using this in my build. Have a couple of friends that have used this and been very happy with it. (Posted on 5/20/2016)
This is a great upperReview by
Value
Quality
Being lefty puts me at disadvantage. Finding good equipment is often a real journey. Somehow I found Rainier Arms and this upper. I also own a Stag Arms lefty AR-15, but I really love this upper. I mated it with a Rainier Arms Ultra Match barrel in .223 Wylde. The upper is solid and fits my Mil-Spec lower perfectly. The barrel mounted without issue and headspaced perfectly. If you are looking to put together a lefty AR, look no further your search is over. I'm buying another for a 300 Blackout... (Posted on 10/2/2015)
Sharp looking excelent finishReview by
Quality
Value
This receiver far exceeded my expectation.
I own at least one receiver of every company that makes a lefty (BHW(1), SA(+5), DPMS,(1) RedX(2)). This will be the only lefty I will purchase from this day forward.
The lefty does not have a dust cover but who needs one when your spitting out shells? You provide and install the forward assist (easy) and your good to go! You wont be let down the upper has an excellent feel and nice sharp lines. The only reason I'm writting this review is because I came back for more….you guessed it they're out of stock…. :(
(Posted on 5/30/2015)

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