Click on pictures to enlarge
FOR NEW ORDERS ONLY - if you purchase accessory rails we
will install these for no additional charge.
The 1911 CCU’s are available in the following calibers:
.45ACP, 10mm, 9mm, 40 Smith & Wesson, .38Super & 460 Roland
Most 1911 lowers will work with the CCU including Officers Models. (NOTE: Mech-Tech advises the use of factory loaded ammo only for all CCU’s)
There is a certain 'juggling' of calibers relative to the CCU Upper of which one may take advantage. The 1911 pistol frame is designed to accept 1911 magazines of several different calibers. The proper magazine for your pistol is of course that for which the slide and barrel is designed. The fact that a 1911 magazine of a different caliber will function in the 1911 frame (when the frame is separated from the slide and barrel) allows one to order a CCU chambered for a cartridge different from that of the assembled pistol's frame you plan to use with the CCU Upper. Example: you have a 1911 which is designed to fire 45 ACP cartridges but you would really like to have a CCU in, say, 10mm. You can then order a 1911 style CCU Upper chambered for the 10mm cartridge and use the frame from your 45 ACP pistol with that CCU. You will need to acquire a 10mm 1911 style magazine and use it only when using the 45 ACP pistol frame with the 10mm CCU. Caution: this does not mean that you can use your 1911 pistol to safely fire a cartridge other than that for which it is designed by simply switching magazines - don't try this - it is dangerous! The barrel and slide of a 1911 pistol is designed for a specific cartridge and only that cartridge is safe to use when the pistol is assembled. Likewise, a CCU used with a 1911 pistol frame (lower unit) can safely fire only the cartridge for which the CCU is designed! This information is provided only to illustrate the flexibility available for 1911 style pistol frame and CCU combinations. Again - your pistol should be used only with the cartridge for which it is designed and a pistol/CCU combination must be used only with the cartridge for which the CCU Upper is designed. If further clarification is needed contact Mech-Tech Systems Inc.
Last Round Hold-Open - there is no last round hold-open function on the CCU.
Safety Lever - only the original GI style safety will function with the 1911 CCU. Extended and ambidextrous safeties will not function as a safety but the CCU will function and fire in all other respects.
The "Lower Unit"
This is the fundamental unit you order to fit your 1911. It comes fully assembled and test fired. It includes only what is shown above. Nothing else is included with the BASIC unit. At the right is shown what can be done by adding rails and other accessories. Accessories are ordered separately - see ACCESSORIES page. We have arranged things this way to allow you, the customer, the greatest degree of freedom to 'build' exactly what you want. Accessories which are ordered at the same time you order a BASIC unit include free installation.
BASIC UNIT 1911 $359.95
1911 Basic Unit with 'MonoRail' – M16 front sight, M16 carry handle rear sight, M4 6 position stock with adapter. (1911 lower not included). $619.75
1911 Basic Unit with 'QuadRail' – Red/Green dot sight , tactical flashlight with integrated red beam laser(no longer available), long riser and Telestock (1911 lower not included). $641.90
NOTE: You can use a 1911 45ACP/10MM or 40S&W lower with a CCU Upper chambered in 9mm or 38 Super but in some cases - depending on the brand of the 1911 lower - you will need to change the ejector installed on your lower to a 9mm/38 Super ejector. This is an easy fix and the new ejector will generally operate correctly with the original pistol configuration. For 45ACP uppers, the lower should be fitted with the standard short ejector below:
Certain 1911 style pistols such as the Paraordnance line have modified receivers which leave an opening in the magazine well in an area critical to proper feeding when these pistols are used with a CCU. Mech-Tech has designed an insert called a 'Para Block' which solves the problem. Frames with 'ramped barrels' can be used with the CCU by installing the 'Parablock'. The photos below illustrate the difference between a 'standard' barrel (left photo) and a 'ramped barrel' (right photo).
NOTE: 'COLT' is a registered trade name and is in no way affiliated with Mech Tech Systems Inc. There are many other manufacturers of 1911 style pistols and the fact that Mech Tech Systems Inc. provides the CCU system as an accessory item for these pistols is in no way intended to imply that any of these manufacturers endorse or are associated with Mech Tech Systems Inc.