Angel Custom "THOR II" CNC Aluminum Piston w/ CNC Steel Teeth for Airsoft AEG Rifles

"Amazing piston, it will definitely make your gun really loud in combination of a flat faced aluminum piston head. Simply awesome, I will buy this again for sure.

"Heavy, 23 grams for the piston alone, but fine for most builds. No issues, surprising for an Angel Custom internal part.

"Strong piston, i like it
Important dont fit on krytacs gearboxes!

"Note this piston has 14 teeth minus one tooth (one being shaved off), it only has 13 teeth for the sector gear to pull on so you need to shave off the last tooth on your sector gear to use this piston. Other than that this piston is one of my favorites for extreme speed or franken torque builds. If you want something else than SHS then go with this but be warned this piston may not fit in all v2 gearboxes because of the guides on the side may not mesh with the guides within the gearbox. I know this because it wont fit in my XR-5 gearbox but the SHS pistons fit in it perfectly. All in all, this piston is a good choice for any build, This can fit in APS silver edge gearboxes and many more it was just the CSI gearbox in the XR-5 I found it wont fit.

"Very high quality, durable, and light. Would buy again.

"I put this in my stock, Echo-1 G36c because the teeth on my polycarb started to wear down and eventually shattered into 3 pieces. This piston is amazing. Looks nice, great construction.
Overall, Good buy. Would recommend.

"a wicked piston for high power springs i run this piston in my ics m4 sniper with a sp 170 spring and torq gears never had any problems with it..and you can also run it in high speed set up to..i drilled holes in it to lighten up the piston for high speed...

"had this for awhile it hasnt boke/broken anything. gives some really cool recoil with a m130 it rocks the gun and feels really cool on full auto. it doesnt really show any drop in fps/rof. overall god buy

"This piston is amazing, but, highly recommend that you be an experienced tech for this piston. The reason i say that is because this is a 14 tooth piston, which requires you to remove the last tooth off your sector gear, if you dont, you will have the piston come forward before the gears are out of the way, shredding it and making it sound god awful. This is important that you do this! Now, this is considered short stroking, so, you will loose FPS with this piston since it isnt being pulled back nearly as far. BUT this will give you a faster cycle time and trigger response, but only by a small margin. I use this piston in my custom gun, V.2 gearbox with a Madbull M110, Modify Torus Gearbox shell 8mm, 8mm bearings, Angel custom cylinder (red silent piston kit), SHS piston head, G&P cylinder head, this piston, standard ratio CNC steel gears by BRAVO, and a Lonex A3 motor. Shimmed correctly i am getting 24.5 RPS on a 11.1 lipo which is perfect for me because i am on a profesional team and my gun must be milsim legal (25rps down) and my gun shoots 330FPS with a +/- 2 fps with .28g BB's, which roughly equals about 390~ FPS. Overall, i really like this piston, and its extremely strong. I have used a lot of different pistons, Raptor Airsoft, Madbull, AIM, and out of all of them, i feel like the teeth on this piston are stronger, or just better made. Now, dont let the fact that its an aluminium body fool you, because it is still very light. It is heavier than a Madbull piston, but, only by a little. Which, for a set up either below 30rps or over an m130 spring, this piston is perfect.

"currently am running this piston custom sp130 spring and it works very nicely! Great Piston!

"Great piston but I believe it is heavier than the SHS blue one and a bit pricey. Also it has trouble fitting into some gearboxes. This is because the spring makes the tracks rotate when under pressure, and so when closing the shell of the gearbox use a rod and depress the spring by pressing on the piston head, and the gearbox should close. Otherwise it's a great piston so far. I am about to try it in a 35rpm M150spring build, so we'll see how that goes..

"This piston did not fit in a Krytac gearbox, however it did fit in a Kings Arms gearbox.

Aside from that seems quality at this time.