Only the Mk1 variant had the ejection port as it was meant for the semi auto Pederson device.
There were a couple other differences as well, maybe the sear and another. Those were supposed to have been removed from the Mk1's when the government decided to put all the devices and ammo on a ship, tow it out into the Atlantic Ocean and sink the ship to insure the civilians never got their hands on any of those scary things.
What I like about the XD is consistency with my CZs, M&Ps, FNS, Colts, etc., etc., etc. Same motions/action to fire it.
They are sort of rare. I looked at the Powder River Precision web site for a trigger kit for it. Only one of the four seemed to be meant for that pistol. I ordered it. I got it and spent some time during 2 or 3 sessions trying get all the parts to fit. Got some in/working. Stoned others for clearance issues (thinner), fiddled with it, parts in, parts out, finally contacted PRP. They were surprised that their text/description on their website had missed that they had no kit meant for the XD model with thumb safeties and told me they would refund my money and I could send the kit back. I told them I'd used some of the parts, polished some of the parts and was fine with what I had.
They changed their description/text that day (it was a weekend, too) to specifically say the kits would not work with the thumb safety XD pistols and still sent my money back to me. I used that money to buy a partial trigger kit for another XD. Funny, the pieces I managed to put in the .45 resulted in a better/nicer feeling trigger pull than the kit I bought for the other XD did for that pistol. More polishing maybe??
Every time I field strip that .45 I chuckle at the thought of people complaining about the recoil springs in CZ pistols. That .45 XD recoil spring is similar (in feel when trying to get the guide/spring back in the slide) to messing with a recoil spring on and M1 Garand or M14. Never have had a pistol with a recoil spring like that one.
