AR Sponsor
Posted: 7/13/2005 8:32:39 PM EDT
Today I put together my AR15. It consist of a DPMS dissipator upper receiver, Stinger Arms lower receiver with an Ace skeleton stock. The upper and lower receivers fit together nicely with no play. The pins even lined-up and were easly opened and closed by hand. The color match was good, however the Stinger lower was just a little darker. This was practically unnoticable after a thin coat of oil. Both receivers were of very good quality. I hand cycled five rounds through the weapon and discovered the chamber of the upper receiver was tight. I call the DPMS dealer and was told this was normal and to follow the barrel break-in procedure. All and all, at this point I like the weapon. I just hope the chamber will not turn into a problem. Can anyone out there verify that this will correct itself with time. Tomorrow, when the sun is out, I will post a better picture. 
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| Well no one has taken a stab at this so I will chance a guess. It really could be a multitude of things. If everything seems to function smoothly w/o rounds being chambered it may be a small burr on the mating face of either the bolt or barrel extension. Another possibility would be a chamber on the minimum side with rounds on the plus side of tolerances. Doesn't mean anything is wrong with either the ammo or the chamber. I would say take it out and shoot it . Shoot one round at a time slowly and observe functioning. If no problems after five or so rounds (especially if you can do it with the rounds that caused the problem) i would say it is ok. If it is a small burr firing will most likely remove it with no malfunction. If it malfunctions stop right there and try to id the problem before proceeding. |
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