Sorry, heres a more precise question

Question

Multi-Caliber Pistol   QUESTION: Hello,

My friend lives in Colchester, Essex, near where the military base is. He says he sketched this picture from an original, a paper that he noticed on a table while he was called out on a job to lay carpet in 1983, that he was intrigued and that he copied some of the text written there.

"A solution to the problem of varying ammunition types which an SIS officer might wish to use -- or perhaps be forced to use -- each one is an extremely exacting bespoke rebuild of what was originally a CZ-45 pistol in .25 caliber. Necessary milling procedures are closely monitored by an expert, and most parts are entirely handmade. Like the original, the MCP is double-action only, and like the original, the MCP does not have a manual safety. By switching between the two conversion kits that are issued with each pistol, the MCP is able to fire either 9x18mm or 9x19mm. In each case, the barrel of the necessary conversion kit locks into place by a mechanism similar to the one found in the old Browning 1910.

The pistol is designed to accommodate 7+1 of whichever of those two calibers is loaded. However, it is obvious that each conversion kit can load only one kind of round. The pistol is large enough to require some thought for proper concealed carry, the time required to draw it in an emergency is slightly more than would be ideal, and there is also a higher than average chance of jamming. The conversion kits have been designed to give roughly equal muzzle energy, no matter which of the two possible calibers is loaded. The MCP has a maximum effective range of 50 meters. It takes half a second to cycle, and just over 20 seconds are required for an experienced user to change out the conversion kit and be able to fire one of the other kinds of ammunition. It is made from stainless steel and is operationally "sterile," with no identifying marks of any kind. The production cost is extremely high, consequently the inventory on ?

It was rather foolish of him to do it, and obviously I warned him never to do such a thing again. Still, I would be very interested to hear what you think.

Thanks very much,

Julian

ANSWER: Not sure what you are asking, it sounds like a conversion kit for a gun which is still used by the military sometime to make a M16 shoot smaller cheaper bullets.

Never heard of this gun.  The 7 and 1 is referring to 7 rounds in the magazine (clip) and one in the chamber.

Not sure if that answers your question.

---------- FOLLOW-UP ----------

QUESTION: I apologize for not being precise enough in asking my question, because it didn't show enough respect for your time.

What I meant to ask was, does it sound to you as though a handgun modular enough to feed and to fire 9 x 18 *or*  9 x 19,  just by switching out certain interior components could actually be built -- assuming work by experts with funding and proper equipment? My other question is that I know there must be a reason for the two or three parts at the very bottom of the grip, the contoured "lumpy places"  I see there. One of the bumps must be the release for the clip,  but which one, and what are the other bumps for?

Sorry for bothering you again, and I promise not to ask you any more questions.

Thanks very much,

Julian

Answer
The gun in the picture looks like an H & K (heckler and koch) P9S.  I have this gun and the gun looks like a german gun.

If you look at the bottom of your pic, you will see at the back of the mag there is a release button, that is called a European release.  On Amercian guns the mag release is high so the thumb can depress the button, on a European release, you have mannually pull the mag out while pushing the button to the rear.

The extra piece in front of the bottom of the mag is an extension to the mag to your little finger will rest on it when gripping the gun.  I have a link here where their is a picture of the HK P9S model, if you google it you will get lots of hits on the gun.

The little piece inside the trigger guard upper front is a take-down release.  So in order to remove the slide you depress that button and the slide comes off for maintenance or cleaning.


http://www.gunsamerica.com/916075374/Guns/Pistols/Heckler-Koch-Pistols/SteelFram

What you are describing is fairly nomal and very easy to find, lots of gun manufacturers out there but HK is a well made German gun and they have always been ahead of their time.  My guess is the picture is an HK or a copy of one.

Rick