First Samco usually impresses me by producing a good product with a good price. I wasn't impressed with this piece at all. The ergonomics are ok, and it's made of good material. The probelm is that the mechanism that locks the onto the rail system makes this grip completely worthless. I actually broke the locking bar inside of the rail grab by simply pulling on it. If it isn't broke it still wiggles all over the place. I would expect this kind of quality from some knock off airsoft supplier, but not from a company that produces REAL weapon accessories for an economical price. Spend more money and get a quality forward grip from knights armament or viltor.