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Posted: 1/31/2009 1:50:27 PM EDT
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I went to the range yesterday to shoot my new build for the first time. Armalite Upper, Bolt and Barrel. DPMS Lower. The first couple out of the rifle cycled fine. Then it started shooting one at a time and would not lock back on an empty mag. When I took it apart, it was lightly lubricated (slightly more than I would use in the sandbox). I took my oil and soaked the hell out of the bolt carrier and upper grooves (I mean sloppy oily). Anyway, after a couple shots, it started to cycle fine again. Is this normal with a new build. Do I have to have it dripping with oil to cycle till the part wear a little?
Mutt |
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It's has a 4 position collapsable stock. I am using the standard M-4 type buffer spring and wieght. I am using a mid length M-4 16" barrel. Yes, the rings are alligned properly, yes, the key is staked properly. The bolt assembly, gas tube and barrel were all purchased from Amarlite and are meant to work together and stuffed into a flattop upper. All parts are brand new off the shelf. No parts are recycled from older weapons. It all feels tight when assembled. It functions fine, but only seems to cycle properly when soaked in oil. I have used many M-16 in the past that functioned much looser. Then again, they were probably 50 years old and had 10,000 rounds through them. When it gets down to it, I am pretty much wondering if this should all get better as break in continues or should I be looking for signs of something? I only have about 80 or so round through all new parts.
I am using known good mags. I am using Federal Lake City 55 Grain 5.56 FMJBT XM193 ammo. I think that answers what you guys were asking. I'm just wondering if I should just keep smiling, keep shooting and all will improve with more wear. Mutt |
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Quoted:
The bolt assembly, gas tube and barrel were all purchased from Amarlite and are meant to work together and stuffed into a flattop upper. All parts are brand new off the shelf. Sometimes new rifles have to be run really wet for a few hundred rounds to be broken in. Sometimes. However, If the gas block isn't taper pinned on, slide the GB forward and see where the little sooty circle is around the gas port. If it's not completely encompassing the port you may have to slide the GB a millimeter or so towards the muzzle. I had a build that was doing the same thing. The GB was too far aft, butted right up next to the shoulder on the barrel, and it was covering up a bit of the port. |
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