XD MOD.2
I don't know if this has already been addressed, but, well, I verified an interesting theory. XD(M) 3.8 threaded barrels (which usually have an overall barrel length of 4.5") WILL, in fact, fit in the 4" Service Model XD Mod.2... The fit is just as tight as the OEM Mod.2 barrel, and the lockup...