anybody know of any troubles of gas piston?

[gus7]

the one called gaspiston.com / osprey defence ,anybody use them here ? or tested them?? thxs.

[bcammons]

Carrier tilt most will say as well as an excess amount of heat in the gas block/fsb from what I have read about them. I personally have been happy with my DI system.

[Paulo_Santos]

From reading about them on ARFCOM, they sound pretty good. Check out the Piston Section on ARFCOM.

[John Hwang]

http://www.weaponevolution.com/forum/showthread.php?2287-Osprey-Defense-OPS-416-piston-retrofit-kit