As to the "Why" question - First of all, my hearing is bad enough after all of the loud noises and things blowing up through 14 1/2 yrs of Infantry and SF training and operations. I have binary tinnitis and complete hearing loss in my left ear and high freq hearing loss in the right one. if I can lessen the noise, maybe I will have some hearing left in my old age. Second, I have two teenage daughters and a wife who have fired the XDS45 and all three have balked at the kick and the noise. There may be a time when one of them will have to use the gun and the silencer will negate both the kick and the noise to the point they may be able to hit what they're pointing at. That is my hope, at least.yes, many companies use XDS to refer to XD Service.
I personally dont see a need for these barrels, but to each his own, and have fun. Its your gun, not mine. do what ya want and let the haters hate.
If I saw one in person, I would think why? but then I would think Why NoT?!?!
I contacted Impact Arms in Utah and they waived the restock fee for returning the barrel.