Update: The lever has seen some war testing now! The most urgent issue is how easily the self-tapped threads strip (a fairly common issue with PLA), which I've temporarily resolved with superglue. I may update the design to rely on that instead of screws.

This is a pull valve lever for the Buzz Bee Big Blast/Berserker air tank. Should fit both 1st and 2nd gens, and also fits a tank from the Spy Gear Signal launcher. (Which is somewhere between 4B gen1/2 size and comes with an odd back pump.) Requires 2 short screws (approx M2 size but maybe smaller; screws from most blasters should work) and may require hot glue for a proper fit once positioned. Different tanks and configurations may require customization, adjustments, hot glue, trimming, etc. as I haven't optimized for each use case yet.

The design is very thick, which should be sufficiently durable even in PLA. In addition, PLA does not flex at all. (Despite being more brittle/weaker.) Will test in ABS and/or PETG later to see flexing characteristics. Excess flex will cause trouble actuating the pin. PLA's overall lifetime durability is unknown, but I don't expect it to last that long under harsh conditions of constant gameplay, especially with larger tanks and higher pump counts.