Caliburn Spring Quick Swap Butt

I got tired of full disassembly after HvZ to swap springs, and I got tired of the effort it took to test different springs. This mod allows complete toolless hot-swapping of springs with only a tiny bit of additional hardware. Great for HvZ! Swap can be done easily in 20 seconds, or even quicker in a hurry.

https://www.youtube.com/watch?v=Mbo2dr-pdBs

Come more of my work on Instagram @UPWDesign!