Flatlander.54
New member
OK, I may be getting a DPMS .204 Ruger upper/barrel assembly. I was in the frame of mind that it would work on any standard AR lower assembly but, DPMS's site has .204 lowers advertised along with .223/5.56 lowers.
Is there a difference somewhere that prevents using a .204 upper with a standard .223 lower? Im confused as to why they would list LOWERS specifically for .204 AND .223 if the .204 upper will work on any standard AR lower.
Is there a difference somewhere that prevents using a .204 upper with a standard .223 lower? Im confused as to why they would list LOWERS specifically for .204 AND .223 if the .204 upper will work on any standard AR lower.