I had 2-3 magazines run fine on the SCS the first time i tried them https://guncadindex.com/detail/SCS-Kabuto:f but haven’t been able to replicate that initial success since. There we’re dudes on fosscad saying that fully printed TURDS worked well for thousands of rounds so i tried that as well but on my carbine buffer weight, midlength gas, low shelf, 16" with 55gr i couldn’t get it to run at all.

i tried tweaking my buffer weight with the Odin works adjustable buffer https://www.odinworks.com/Adjustable-Buffer-p/os-abs.htm but every combination with the heavy body from h1-h3 didnt work at all

I’ve tried a couple of the housings but ive never had the arm get stuck under a bcg. Ethan told me on the DD chat that he had to remove the buffer tube to get the turds arm unwedged under his BCG