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Old 05-09-2017, 03:05 PM
cyphertext cyphertext is offline
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Originally Posted by Disabled1 View Post
My Sport I and AR-556 both have matching upper's and lower's.
BTW, I noticed a "KEYHOLE" emblem on both of my AR's. What AR part manufacturing company uses this emblem?
That is the forge marking... the keyhole is Cerro Forge, if I remember correctly. S&W does all the final machining for the Sport, and I would assume that Ruger does the same.
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