in_my_honest_opinion

BRN-10, Jackyl, CMMG Dissent all rely on a buffer tube ring and will crack the back of a printed AR lower.

https://hoffmantactical.com/designs/sl-15/

This will happily cycle an AR 10 upper with a buffer tube.

You have a good idea about reinforcement. Screw the endstop block into a blind hole in the back and have a monolithic lower with stock. Like a short stroke WWSD rifle.

The bufferless part is a bit of a sticky widget as the back of the reciever usually stops the rearward travel of the BCG. So actually buffer tubes being made from steel and allowing for slower deceleration of the BCG make for a better candidate for “softer” lowers.

If there is buffer less upper that doesn’t use the lower receiver as the backstop for the BCG please let me know. I stopped following shotshow a decade ago.

I think it would depend on how close to the chuck it is. Way better than keeping it in my pocket and then finding it when I’m folding laundry though….

Claude? That you?

Oh absolutely! I try to always start from cli and config files first personally so keycloak made a lot of sense to me. Good luck with whatever you choose.

What’s the difficulty with keycloak? I just set this up last weekend

https://oneuptime.com/blog/post/2026-03-18-run-keycloak-podman-container/view