A Tale of Two Hammers

[Bogey Fett]

PIcked up a couple of Hammer pumps recently to combine into one project and was surprised at the difference in internals. My original Hammer (sold long ago) had the internals pictured on the right and it had "Pump Gun of the Year 1993" on the box, but I'm pretty sure it was mid '94 or later when I purchased it so I'm assuming the internals on the right are newer, left are older style. I'm not 100% the mainspring on the left is original as it is very soft and shoots at low velocity but it is what came in the marker. Also the older bolt has a shallower o-ring groove and uses a #9 while the newer bolt uses a #10. The small groove on the newer bolt face was done by me as clearance for the detent I added. Any parts not pictured were the same.

[Chaos]

There's another version as well.....Had one that had the velocity adjuster like the one on the right in the second picture but, it lacked the o-ring groove