Thread: G&G M4 Blowback
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Old August 17th, 2009, 02:54   #8
Join Date: May 2009
Location: Richmond, BC
Like everybody said already, it causes extra stress on the piston and gears.

I have a full metal L85 and I noticed that the bolt was scratching against the body of the gun from insufficient lubrication/sand getting in during play. I'd imagine that it would be much worse on a plastic gun.
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