High flow, precise milling, just about everything that is good in a valve, this thing has
If you are not careful the orings on the vavle will cut themselves as you put it in the gun. I didn't do this, but i just noticed that if i was in a hurry it could have went bad.
Best vavle out there for the BM2k and not sure about the cocker version yet, i haven't seen one in action. If you want to get a low cost upgrade for your gun get the RED vavle, but i wouldn't recommed it if you don't have a good after market reg. It will improve preformence and it's a MACDEV product so it is very well made.