Caliburn 4 - Front Muzzle with O-Ring Collet

[05/26/2023] Corrected the model to be the correct piece. Apologies on the error. Also, added one version of the Collet Nut from Silly. He's got a bunch of other versions, textures and lengths on his github, so check there if you wanted to give it a different look!

Replaces Captian Slug's original Caliburn file: “C6 - 4Muzz2”

Adds Sillybutts' O-Ring collet onto the front print. The intention is to use this Collet with the one Slug already designed into the "C3 - 4Muzz" so that I wouldn't need to use the bottom screw to attach the barrel. 

I don't like damaging my barrels hah.

Enjoy!