One more reason I don’t recommend DPMS.

On a quality AR15 or its variations the bolt is cut in a way that the cam pin can only be inserted in one direction, the proper one needed for the rifle to function correctly.

In the case of this DPMS .308, it was not cut that way.  The owner of it dutifully took apart and cleaned his bolt carrier group after each range session, and finally accidentally installed the bolt in turned 180 degrees.  When he fired the first shot, the rifle attempted to eject the case into the side of the upper receiver and the rifle jammed.  In this particular case, I had an awkward time getting that spent case out of his rifle.

DPMS fail backwards bolt
Backwards Bolt

 

And on a side note, use quality ammunition.  Poor quality reloads or defective/damaged rounds can cause catastrophic results.

.50 BMG

Your .50 BMG rounds should not do this when fired.

6 thoughts on “One more reason I don’t recommend DPMS.”

    1. This guys customer must have bought a new BCG for his DPMS .308. DPMS .308’s cam pins are cut to only go in one way. It’s also pretty easy to verify this. The bias shows up even in the title of this article and it’s a real shame that facts have eluded the author of this blog.

      1. John, it is a factory gun with factory parts. I am biased, I don’t like DPMS as I see more issues with DPMS rifles than any other brand of AR15. Many of these issues are user error, however there are plenty of hardware issues with some DPMS rifles.

  1. I am also not a big fan of DPMS. I have shot a few informally but never a full on review. They worked but felt cheap when compared to say a Colt or Barnes Precision Machine AR.

  2. I am also not a fan of DPMS. I have shot a few informally but never a full on review.
    They worked but felt cheap when compared to say a Colt or Barnes Precision Machine AR.

  3. They’re like cars, some drive Ford, others, BMWs or Mercedes. There are some that operate more efficiently and feel better than others. I have a DPMS LR-308, which I would quickly use in defense of my life. If you don’t like them, that’s okay but some of us are very thankful for them because our pocketbooks wouldn’t agree with our getting a big name weapon. Perhaps that’s why I appreciate mine the way I do. It gets the job done with minimal trouble. Thanks to my American DPMS company and the freedom I have to purchase one.

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