I have a DPMS Pantherlite 16 inch carbine. It has an A1 upper with an A1 stlye birdcage flash surpressor. I think I want to change the surpressor to the Bushmaster shorty style that is about 4 1/2 inches long with internal threads that makes it look like the old commando style rifle. The new surpressor says it has 1/2 x 28 tpi. Is this compatible with my DPMS threads?