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Posted: 9/2/2006 5:13:56 PM EDT
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I need help identifying an upper that my friend has on his Bushmaster lower. It is the 11.5" barrel with the long flash suppressor and has a bayonet lug. It also has A1 rear sights with "D K" under the rear sight on the right side. I do not believe it is Bushmaster manufacture as the front pin hinge was shaved to allow the upper to fit the lower. My friend gave me the weapon to get it running for him. After purchasing a bolt and carrier, I tried to test fire the weapon. The weapon fired, the bolt group moved to the rear, and then tried to feed another round. The problem lies in that the fired cartridge won't extract. The extractor is doing its job; it rips a chunk of the case rim off. Unfired cartridges feed and extract fine. Upon removal of the fired case via cleaning rod, it was plain to see the casing has what appear to be "peel" marks. Upon inspection after cleaning, I can see that there are chamber long grooves in the chamber chrome, that can also be felt with a probe. I need to either find out who the manufacturer is to send the upper back for repair, or see if someone can recomend a source to exchange the barrel. Sorry I was so long winded, but I felt a little bit of history was in order. Thanks in advance for any assistance. |
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The upper receiver was produced by Diemaco / Kaiser (type C-6 it has a FA). Now I can guaranty that it does not have a Canadian barrel, which means more than a hand full of companies alone may have used that upper if it was factory assembled, and if you add in the gun show vendors that use parts to build complete uppers to sell, the possibility are unlimited. Hate to say it, but it looks like either he comes up with a receipt to pin point the seller, or will be buying a replacement barrel out of his own pocket. As for someone to exchange you a barrel for the defective one, unless you can find some sort of marking on the barrel that can pin point the barrel manufacture, then there is no way of knowing who produce it, leaving the only doable option of just buying a replacement barrel. Pull the hand guards and take a close look at the barrel. It should be at least marked 223 or 5.56 somewhere on the barrel and may luck out with additional markings as well. P.S. Welcome to the site!!!! |
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