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Crosman 1377 Pump Arm

This is a pump arm for the Crosman 1377 air pistol


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*NOTE* The included sketchup modeled is scaled up by 10x. The STL is 1:1.

This is a printable replacement pump arm for the Crosman 1377. It features a much larger profile for your hand to grab onto. No more pinched finger tips with this arm. I didn't like the swoopy look of the backpacker pump arm, and the wood options out there, while super nice, are out of my price range.

IMPORTANT: The original model was printed out, and while it fit the pump arm linkage just fine, it was hitting the barrel band and was preventing the piston from fully opening up, so it didn't work. I have changed the design slightly and reuploaded it as V2.

*NOTE* The included sketchup modeled is scaled up by 10x! The STL is 1:1.

Materials and methods

- ABS or PLA
- Crosman 1377



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8f4b9c7f29c8bab8980e63cf61094b2e?default=blank&size=40Valeron added this to the Want to make collection ago
B1e5d2d82881c6c179ef909349555ce2?default=blank&size=40chantling added this to the Airguns collection ago
4da27e5ea037d649cfda91aa1840c5fb?default=blank&size=40ApacheXMD commented ago

Thanks! No the grip was made using a 2 part epoxy putty called Magic Sculpt. I had plans to 3d scan it to make it printable, but I haven't built a scanner yet.

Mini apophysis 040822 23nabell commented ago

It's great to see someone making 1377 parts. Is that grip also printed?

Mini harebourgHarebourg commented ago

Realy nice work dude !

4da27e5ea037d649cfda91aa1840c5fb?default=blank&size=40ApacheXMD published this design ago