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Does anyone know if the steel rails on the inside of the ACR where the bcg slides in is coated in melonite like the barrel?
 

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Does anyone know if the steel rails on the inside of the ACR where the bcg slides in is coated in melonite like the barrel?
Excellent question. Either they treated with something or are very hard. 3400 rounds thru mine and the reciever rails have zero wear on them. In fact most of the moving parts have minimal wear concidering.

Hmmmmmm
 

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I'd guess they are as well. But, that opinion is worth what you paid for it!
 

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So worthless, huh?

Sent from my DROID PRO using Tapatalk
 

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I value it at $3.50 myself.


Sent from my couch using my netbook.
 

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yeah, tapatalk automatically puts that in there
 

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If I remember correctly from an interview with Bushmaster reps, all moving parts of the ACR are melonite treated. I believe that included the rail in the reciever, bolt, carrier, cam pin, barrel, barrel extension, and gas system. However, I know the clamps that guide the piston aren't melonited, or at least one part is not melonite treated because it rusted!
 
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