The guns themselves, although they do share a polymer-type frame, are completely different pistols. The XDM is a DAO/dual-action type trigger set, whereas the P30 is a DA/SA Variant 3 trigger group with a rear frame placed decocker, like that on the P2000.
Sorry but the XD and XDM's trigger is not Double Action at all. It is also not single action. It is striker fire - sort of like a Glock. Pulling the trigger finishes cocking it and releases the firing pin. It depends on the motion of the slide to reset the pin and partially cock the gun. If it were DAO, you could pull the trigger twice in a row (with no round in the chamber and the magazine) and it would dry fire twice. I don't mean to call you out but a lot of people are confused about this.:shock:
"Like all XDs, the .45 ACP Compact features a unique trigger, which, strictly speaking, wouldn't be classified as double action only. Springfield refers to the action as the Ultra Safety Assurance system. The internal striker is loaded when the slide cycles. The result is a trigger with a relatively short arc; the break is remarkably consistent and measures (usually) around eight pounds or so. It certainly isn't as crisp as a single action, but it is consistent, which solves the usual problem with conventional double-action/ single-action autos--namely having to navigate a heavy, spongy pull and a light, spongy one."-
Sizing Down, Powering Up
"Let us define some terms. The XD is a striker fired, short recoil, locked breech, automatic pistol with a polymer frame. It uses the age-old Browning tilting barrel design that is still used today on the majority of autoloading pistols in 9mm or larger calibers. This is a good thing. The design wouldn't still be in use if someone had come up with a better idea.
The term "striker" may not be familiar to all, but it is a very important factor in the design. The striker is analogous to a firing pin, for both of them strike the primer and make the gun go bang, but how they do it is different. If we use a system such as the 1911 for comparison, the firing pin is struck by the hammer, which is powered by the mainspring. There is no direct connection between the firing pin and hammer or any other part of the firing mechanism. When the hammer hits the firing pin it is driven forward against the tension of the firing pin spring.
Strikers work differently. The striker is drawn back against the tension of a spring and held there until it's released to fly forward and strike the primer. They've been around in pistols since the dawn of the 20th century and long before that in bolt action rifles. But when we try to attach ordinary definitions they don't always fit very well.
Three terms: single-action, double-action and double-action only are used to define how pistols are fired. They are also a mighty source of confusion. Striker firing mechanisms complicate things a bit, and although we try to make them conform to the same definitions they don't exactly fit. I wish we didn't spend so much time trying to stuff things into pigeonholes.
Some self appointed experts have proclaimed striker firing mechanisms are unsafe because you're running around with a cocked single-action gun. Obviously, their knowledge of firearms, vast though it may be, doesn't include knowledge of virtually all centerfire rifles and shotguns, which have actions that conform, quite precisely, to the single-action definition. Many of them are striker fired too. Look at bolt action rifles and tell me that the firing pin is not a striker. We routinely go afield with shotguns and rifles that are loaded with the safety engaged and think nothing of it. How then, can a striker fired pistol be more or less safe than a bolt-action rifle or pump shotgun with an operating safety?
Is It Or Not?
Some folks call the XD a single-action but say the Glock is double-action only. How they get to that conclusion is beyond me, because there is little difference in how the two guns work. Is it a single-action? Yes, say some. No, say others. Two points come to mind: Does it matter? Who cares? My answer to the first is, not really; and to the second; probably those who have the most to lose from viable competition. I guess it all depends on whose ox is being gored."-
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