Stag 10 LH Upper Receiver Assembly

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The Stag 10 Left Handed Upper Receiver Assembly includes a dust cover and forward assist with a picatinny rail on the top,.


Our left handed upper receiver has the same barrel nut threads as DPMS, accepts DPMS barrels, accepts Stag BCGS and DPMS Charging Handles. Once matched with our custom Stag Lower, Takedown Pin, Pivot Pin and Takedown Pin Detent, this assembly can be built using standard DPMS components.


Pivot/Takedown Pin Size: .2770"  

Tang Height: .210 DPMS High Profile

Material: Forged and mil-spec with type 3 hard coat anodizing and a picatinny rail on top

SKU: STAG310044


Q: Are the bolt carrier and charging handle included?

A: The bolt carrier and charging handle are sold separately.

Q: Will this upper assembly work with other manufacturers?

A: Due to the Armalite Slant Cut, which was designed for a better fit, this upper will only work with our custom Stag Left Handed BCG, Lower, Takedown Pin, Pivot Pin and Takedown Pin Detent. This upper is then compatible with DPMS components to complete builds.

7 Reviews

  • 5

    Posted by Dusty Dunn on 28th Jul 2021

    The best part of this product was the price, to be able to get not only a left handed upper, but for it to also be assembled (forward assist/ejection port) for such a low price is amazing. And the quality is outstanding, even their blemished products are outstanding. Just an overall great company!

  • 5
    Shipping and Product Finish

    Posted by John McClane on 23rd Apr 2021

    Finish is exceptional compared to other manufacturers uppers I have purchased. Order shipped quickly and was receive properly packed. I have not receive the lower yet so I can not comment on the fit. Very Happy with my purchase.

  • 5
    Great product

    Posted by Jeff D. on 9th Apr 2021

    I bought this for a 20" .308 build. Quality parts and great service from Stag. Thanks for making my lefty dreams come true lol.

  • 5
    AR 10 LH. Upper

    Posted by Robert Shine on 31st Mar 2021

    Excellent fit and finish as usual. I enjoy Stag products .

  • 5
    Good quality

    Posted by Gary on 24th Mar 2021

    Love your lefty hardware, great quaility!

  • 5
    Awesome left hand upper

    Posted by Wayne on 7th Nov 2020

    Yes I shoot goofy handed and even though I have gotten use to shells going across my face. I was excited to see left hand uppers! My first left hand upper was on a 5.56 build! I was so impressed with Stag Arms I went to their website to order directly. I can’t say enough... the quality is the highest I have ever seen! I will use Stag Arms for all my future builds!

  • 5
    Stag AR10 LH Upper

    Posted by Jim on 6th Oct 2017

    Just received this recently introduced product and I'm completely in awe of the perfect fit with an AR10 Stag lower I had previously purchased and also happy with the finish of the upper. I had originally ordered this LH upper before they were supposed to be released in July, 2017, and had to wait several months while there were some manufacturing difficulties. As I understand it, the magazine wells didn't accomodate all AR10 mags well, so the initial run were rejected and reworked. In the end, Stag did it right and it says much about the company integrity that the product wasn't shipped until it was right.