KRG C-4 Chassis for VSR-10 Airsoft Replica

Hello !

Here is a chassis for the Tokyo Marui VSR-10 airsoft replica and all of its copies. It replicates the Kinetic Research Group C-4 chassis, an High-end chassis for PRS shooters. I took some liberties, mainly by removing the magwell to install it on a tripod. The center of gravity being exactly at this location, you can clamp it directly there, or install an Arca rail with the M-Lok slots.

The chassis has a lot of adjusments possible. They are replicated and adapted to 3D printing, by playing with the dimensions and the hardware. Overall it's a nice chassis, but be aware that it's a very, very long one, you will need a VSR-10 with a long barrel. It uses standard VSR-10 magazines. The mag stick out a bit at the back because of the thickness of the body. It's not a problem in itself, but voila.

Since it's a long chassis, I've pre splitted it in several parts. Any printer of 200mm minimum axis should be able to print it. The stock has 3 versions in the package: 1 part, 2 halves split, 4 parts split. You will need to glue the parts together. Check this video to understand how to do it the right way :

https://www.youtube.com/watch?v=Da-3L3rS4lU&t=6s

Hardware it very common, check the last pictures for the details, mainly screws (ISO4762, and ISO7380 for the grips for a perfect fit) and inserts (Ruthex M4S,because it's shorter than standard M4). Use hexagonal screws (ISO4017) for the lenght of pull adjustment, bag rider and cheek rest height. Use the "M6_knob" and "M5_knob" for a nice design. you insert the screw inside and glue the knob_cap on it.

There is only one grip file, it's normal, it's the same on each side, but you will have to do a mirror of it for the left side. It's easy to do with pretty much every slicer, like Cura, Prusaslicer, BambuStudio...

While this seems complicated, take a look at this video to see how to assemble the stock :

https://youtu.be/_AxOVVte7pw?si=NDkkmdDvT3rh54t2

Have fun !