[Travis McGee]

That 10mm pistol/carbine combo makes sense.

[yarddog]

The HK MP5 and it's variants in 40 and 10mm seem to have become the standard issue carbine/Sub machine gun for just about all American police agencies. They appear to be as ubiquitous as the .38 revolver was in the 1950's.

I have no idea exactly who is issued them but they seem to be the only ones seen except for the occassional AR types.

I have wondered why the two or three shot burst feature is included on so many as it is pretty easy to just get off a two or three shot burst. I personally would just as soon have a semi only.

Like you, I also have always liked the idea of pistol and carbine using the same ammo or even better the same mags and ammo. Also liked the old West combo's or their modern equivalents such as .357 mag revolver and lever action model 92 or some equivalent.