Here's the actual KC9 bolt.
I have found other files but they had to be changed. I had to figure this out through trial and error
and watching all the Derwood interviews, where he leaks the material he uses.
LBRY Tags: kc9; bolt; snark; derwood
u/idunnoiforget · 2024-03-24 18:46:00 UTC · score 3
I was going to do a DIY version of the KC9 but couldn't find STEP files. I didn't want to mess with trying to modify STLs so I got the RTT9 STEP files and modified them for a ECM barrel. Now I just need to figure out how to DIY the bolt
The upper receivers for the RTT9 and KC9 have slightly diff…
u/ifitpleasesthecrown · 2022-09-16 17:26:29 UTC · score 1
those weights use Chinn's equation. if it isn't necessary for a 4 m/s bolt speed, you can absolutely go lower. the KC9 being the primary example. memphistoles reworked it for a 7 m/s ish bolt speed, and it works out fine, substantially reducing bolt weight.
u/Remarkable_Traffic16 · 2022-08-09 01:02:38 UTC · score -9
Why do people build fgc-9’s. All I see is failures around the buffer tube or bolt. When is the damn KC9 bolt restocking?