Aci phat flame drop w/on-off
Dead on drop w/on-off
Free Flow eblade cocker
Ease of turning the air source on and off
None right now
I mounted the one I got on an empire rail.
I works great, and it is perfect for my 68cu tank.
The lever for turning the air on and off turns super easy, much easier than the kind that screw in.
It is cheaper than other asa of it's kind, I got mine for $25.
I would get this with the rail mount if you have a 20oz co2 or 68cu tank.