Identify this piston?

[roys101]

Anyone recognize this piston? Who made it? Thanks.
[img]https://instagram.com/p/BetDu2Qh9WK/ [img]
https://instagram.com/p/BetDu2Qh9WK/

[ECCO Machine]

Anyone recognize this piston? Who made it? Thanks.
[img]https://instagram.com/p/BetDu2Qh9WK/ [img]
https://instagram.com/p/BetDu2Qh9WK/

Couldn't tell you who makes it, but I can tell you I wouldn't want to use such an overweight and inefficient design.

[roys101]

The can the piston goes in is a circa 2000 design. I think the threads might have been for a HK Mk23 .45, but I don't have a Mk23 to try it on. I measured the piston threads but SAE inch thread guage didn't quite fit, so my guess is they are metric. I don't have a metric thread guage.

[gsyoung54]

Anyone recognize this piston? Who made it? Thanks.
[img]https://instagram.com/p/BetDu2Qh9WK/ [img]
https://instagram.com/p/BetDu2Qh9WK/

Looks like the pistons from my Automatic Weapons Company AWC .45 and .40 pistol cans... the Triad-II series take apart cans no longer sold by them. They could be shot dry but really liked to be packed with white lithium grease and even gave you instructions on how to do it properly and how to make a simple grease injector...

If you don't need it I may buy it from you if you are selling.

George