No Brass! Brassless breech for the Smiley blaster.

This is a remix for the pusher and breech of the Smiley blaster, so it now doesn't need any brass for the breech. 

The only added hardware is 2x -012 o-rings, for the tip of the ram. You DO need to lubricate the o-rings at the tip of the ram!

If your mag's feed lips are shredding the o-ring on the ram, you can try to lightly round over the sharp edge of the feed lips with sand paper or a knife. It should make the transition into the magazine a lot smoother for the o-rings, reducing wear and tear. 

FPS Testing/comparison with the normal brass breech will be done at a future date.

While this ram is skinny, it isn't skinny enough to freely drop Nightingale mags when the breech is closed. I did it this way for strength of the ram. To remove mags, first prime the blaster, then remove/load the mag.

If the ram has friction when going into the breech, lightly sand the inlet of the breech until it fits. Try to make it as smooth as possible if you do this. 

Changelog:

4-20-2025: Added STEP and F3D source files for CAD users.