I’m using Brownells liner. No reinforcement plates, just the printed bolt.

The baby barret is my favorite.

Cheap, easy, and reliable. I just run the solid printed bolts with no reinforcements. I recommend the full length model.

Its just a refined variant of the ez/hd22 platform.

CNC kitchen did a pretty good test for layer heights and strength.

Tldr, about half your nozzle with for your layer height will generally get your strongest layer adhesion. So for your typical .4mm nozzle, .2mm layer height will generally make the strongest parts.

I’ve tested this theory pretty extensively with printed ammo. .2mm layer height with a .4mm nozzle seems to be the best for this application and I have tested it pretty thoroughly