There are also a small number of US Air Force M16 Colt's Model 604 found in this serial number range. Serial numbers in this range were not run in order. M16A1’s have been observed with serial numbers as low as 604,505, and XM16E1’s have serial numbers as high as 741,12X. 750,000-752,443 1966 Experimental HBAR. Date of manufacture Colt Single Action revolver Serial Number 263844. Clicking this will make more experts see the question and we will remind you when it gets answered. You can't post conmments that contain an email address.
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Colt Detective Special Production Information in same serial number range as Police Positive Special