The 1911 CCU’s are
available in the following calibers: .45ACP, 10mm, 9mm, 40
Smith & Wesson, .38Super & 460 Roland
lowers will work with the CCU including Officers Models. (NOTE: Mech-Tech
advises the use of factory loaded ammo only for all CCU’s)
This Above is a 1911 CCU with Mini-Quad front rails, M4
front & rear sights and fixed stock.
To the right: a 1911 frame (also called 'lower unit') ready to install into a CCU.
Complete lowers only are readily available available from
many sources. This allows a user to have a dedicated lower
for their CCU. Particularly for 1911's there are many
sources for all internal components and naked frames
allowing the more adventurous to build a dedicated lower
for their CCU's the way they want it. None of the 1911
upper components are needed.
There is a
certain 'juggling' of calibers relative to the CCU 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. 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 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
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 is designed. If further clarification is needed
contact Mech-Tech Systems Inc.
with 'MonoRail' – front & rear M4 sights, M4
stock adapter and M4 standard stock.
with 'QuadRail' – Red/Green dot sight,
tactical flashlight and red beam laser, and Telestock.
is the 'BASIC' unit - this is the fundamental
unit you order to fit your 1911and includes only what
is shown above. Nothing else is included with the
BASIC unit. Stocks, Rails and other accessories
are ordered separately and are shown below. We have
arranged things this way to allow you, the customer,
the greatest degree of freedom to 'build' exactly what
you want - see 'ACCESSORIES' page.
The .357 Sig is a bottle-neck cartridge and the brass
is highly worked in the CCU blowback action. Use only
factory fresh ammo - reloading can result in caseseparation!
ALSO: you can use a 1911 45ACP/10MM or 40S&W
lower with a CCU 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 operate correctly with
the original pistol configuration.
Our product is not a firearm by legal
definitions. The product is for sale to
California residents under limited conditions.
Although the product itself is legal, as we
understand things, the resulting combination
with a pistol frame becomes illegal under
California law. If you are a CA resident you
should be aware of this and it is your
responsibility to observe CA laws. At this time we
know of no other States where the combination is not legal but we caution
everyone to become aware of relative state and local laws.
We are not attorneys and can give no meaningful
advice on these matters.
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 a clever insert
called a 'Para Block' which solves the problem.
Other frames with 'ramped barrels' can
be used with the CCU by installing the
'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 an of
these manufacturers endorse or are associated with
Mech Tech Systems Inc.