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Old March 16th, 2011, 18:45   #7
Qlong's Avatar
Join Date: Jun 2007
Location: Scarborough, Ontario
What platform is this for? SCAR, M4, PDW?

Guys have been blowing their SCAR hinge plates and frames from the open bolt system.

The open bolt M4 bolt carrier, judging by their one picture, isn't made from steel as it is on the closed bolt.

The hop-up is more consistent for the open bolt, but Falcon just released an alternate design, which claims improvements to consistency.


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