Fantastic Hop-Up unit, great performance overall. Increased range and slight fps increase. Hop-up bucking is a bit too strong with .20s. After about 150, my bb's go straight up. Recommend using .25s. Adjustment wheel is stiff yet very easy to adjust. It fits very tight in my stock Echo1 outer barrel but nothing too major about it. Recommend this hop-up unit to anyone who needs a strong hop-up.
-Good Back Spin on bb
-60 Degree Bucking Is Very Strong
-Fairly Easy To Install Onto Inner Barrel
-A Little Difficult To Install Onto Inner Barrel But It Works Very Well
-Recommend Switching to .25's If You Don't Use Them Already
Rating: [5 of 5 Stars!]