Things I liked: Purchased this to connect a Sam Yang rifle to a Benjamin Pump. Works great so far.
Things I would have changed: The black coating flaked off a little...not sure if this could contaminate the air chamber or not. Just keeping my on eye on it. No problems.
Things I liked: Feels and operates much like a real firearm for training purposes. Great quality.
What others should know: Still haven't perfected getting paintballs to fire well. Some break in the barrel. Rubber balls and the dust balls shoot great.