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For: King Arms Full Teeth POM Hard PistonProduct Information:
Just got this today. Thought that this would be a good piston to use with my 11.1v Li-Po since it has 7 metal teeth, I do not have to worry about the front teeth stripping (and easy to Short Stoke for the future). First, it is a little harder to AoE then you are used to. I was careful and did not want to ruin the side walls that are connected to the teeth, so I dremeled out just the teeth. Took a few washers to get optimal AoE.
Put it in my gun along with a new Systema Duracon piston head. Did a test run with the 7.4v lipo, ran fine from what I could tell. Shot in semi cleanly and crisp. Ran to full auto and it was a awesome! About 28-30 rps on a 7.4v and an m100! Decided to put the 11.1v in and see if it could handle it. Semi, terrible. Overshot just slightly enough to mess up the next shot. It literally shot 1.9 times. (Unlike the white polycarb which was light enough to allow 2 shots and a complete cycle). Decided to run it in full auto for a second, BAM. Ripped out 40 rps. Which is good, but all of the metal teeth shattered. Note to next user: SS this before you run with a Li-Po.
Strong, 7 metal teeth
Not too heavy, not too light
Metal teeth broke very quickly (Less then 10 shots)
Heavier then the White PolyCarb
More difficult to AoE