Board Thread:General Nerf discussion/@comment-35642619-20181014130045/@comment-27306930-20181016015455

The most popular Hammershot cylinder is the Gavinfuzzy 8 shot. There are others, but overall this one is the best value for the money.

Pedroh is correct about priming the 10kg spring. If you are considering going to 10kg, you will eventually need a Full Metal Hammershot kit. The 10kg spring will trash the stock catch after a few hundred shots. Also, the Blasterparts hammer mech is larger and much more comfortable.

If have used that 8kg spring with a Gavinfuzzy cylinder and was quite happy with it. Two thumbs up.