Tuesday, September 12, 2006
Untitled Document (COLT HANDGUNS)
AR-15
Later M16 and XM16E1 rifles used a new port door starting in 1964. This port door was also used on the AR-15 M16A1:
The M16A2 came out with a new port door that is still in use today:
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Untitled Document
246 E. Fourth Street - Loveland, CO - (970) 663-5994
# posted by hondaestelle @ 3:58 AM 
