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springrnco
December 12, 2004, 01:25 AM
Can anyone tell me if my RRA AR-15 has a .154 or .169 reciever pin?
Thanks.
Lycanthrope
December 12, 2004, 10:19 AM
Certainly. RRA is little pin. .154

Colts use the larger and they are the only ones that do to my knowledge.