I am working on a tube-style mod, and have been tossing around ideas for a side fire button, but I am now shifting gears towards a bottom-fire. Does anyone have ideas of how I could design this without having any threads on the bottom? Going for a steampunk look, so pieces of the outside are ok. Please help with ideas!
	
		
			
		
		
	
			
			 
				
		 
	 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		