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Page AR-15 » AR-15 / M-16 Retro Forum
AR Sponsor: bravocompany
Posted: 2/2/2011 12:00:28 PM EDT
What years did Martin Marietta make m16A1's. I have an LM upper with a colt barrel and 3 prong suppressor.

I was just trying to find out what to make it into. Wanted to make a 603?
Link Posted: 2/2/2011 12:05:42 PM EDT
Martin Marietta didn't manufacturer M16A1's. They made contract replacement upper receivers. LM receivers can be found on any re-arsenaled 603.
Page AR-15 » AR-15 / M-16 Retro Forum
AR Sponsor: bravocompany
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