I do believe this hop-up has two hop-up arms that apply pressure to two sides of a unique bucking. I also think it needs a specific cylinder head. The review I read gave it positive feedback though. It might get a test run in my M40
PDI Hop Up
http://www.airsoftatlanta.com/PDI_VSR_10_Hopup_Chamber_p/64000.htm
Not sure if anyone else saw this, but check out where the hop up adjustment screws are on this hop up chamber.
About time PDI figured out how to solve the "screws hitting the cylinder head" problem. Not sure if anyone is in the market for one, but if you are, this looks like something that would be a little more user friendly.
Not sure if anyone else saw this, but check out where the hop up adjustment screws are on this hop up chamber.
About time PDI figured out how to solve the "screws hitting the cylinder head" problem. Not sure if anyone is in the market for one, but if you are, this looks like something that would be a little more user friendly.
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