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Posted: 7/10/2011 4:34:51 AM EDT
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Took this AR in on trade. Can anyone help with identifying.
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What they all said. 6550/6551 lower with a 6922 upper assembly, or more likely an M4 upper receiver with a 6922 barrel attached. Note the absence of proof marks on the upper receiver, indicating it is likely not a factory built upper assembly from that period. While 6922 uppers were uncommon, the barrels themselves were much more plentiful than 6920 barrels. At that time (mid 90's), 1/7 twist barrels were not yet desirable in the civilian market like they are now. The majority of barrels sold by Colt were 1/9.
ETA: Almost certainly a non-factory-assembled upper. A period-correct upper should have a large pivot hole. Given the backward castle nut, I'd be suspicious of the assembly of the rifle. |
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