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Your cart is empty. AOLS Piston Head with ball bearing - Red
Aluminum material, Precision CNC Machined with anodized finish.
Compatibility Type: Version 2/3/7 - M4, M16, M733, MP5, SCAR, AK, UMG, etc.
Weight: 20g
Presented by Airsoft Industry Company
Mikey
Reviewed in the United States on June 1, 2020
This thing is constructed very nicely, is made of nice materials and actually gives my CYMA M4 an airseal instead of the old piston head which... Didn't do much of anything. My one complaint is that it's an absolute pain to put together. The bearing that goes between the head and the ... Bottom piece that it is screwed into is actually 3 separate pieces you need to hold together. Also, it DOES infact come with an O-ring, along with everything else that is needed for installing it.
Henry
Reviewed in the United States on October 29, 2020
It worked flawlessly!! Until it exploded in my cylinder. The head fits perfectly, O ring is thick and makes a good seal. Make sure that the thing is screwed tight or else it will fail you.
Smiley
Reviewed in the United States on January 18, 2020
Works well In my colt m4 way better than factory piston head an builds more fps made my gun perform 10 times better than original definitely recommend getting silicon grease an nothn else to grease all gears an moving parts inside gearbox while it is open the factory grease is not up to my personal standards it's too thick an seems kinda dry in my opinion
Matthew R. Brown
Reviewed in the United States on November 3, 2019
Installed with no trouble. Used it a couple of times. Recently the screw stripped out of the piston head and I had to replace it. The threading inside the piston head seems to have failed. Not sure what caused it. I put the original plastic piston head back in my rifle and everything is working as well as before. Maybe it was just defective or maybe bad luck.
Justin D. McGrath
Reviewed in the United States on October 23, 2018
First one to have arrived looked to be a knock off, with a smaller O ring and only 6 ports. I contacted seller and they replaced the piston head free of charge and were very helpful in the process. The new one that came is performing well in my DMR build. Achieving great compression.
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