The EMP4 is the only 1911 I've seen with a barrel protruding from the slide that last little 1/8", and I've seen and owned quite a few, with and without bushings. Does anybody know Springfield's reasoning? The muzzle velocity difference calculates to about 10 fps hotter, so no big deal, and the lockup wouldn't be any different if the barrel was flush with the slide. It's distinctive, for sure, and kind of a mixed bag on whether you like it or not. So the question is: Is there any known purpose for the 1/8" barrel extrusion, or is it just "because...."?