FAQ’s

Q) Do I need an FFL (Federal Firearms License) to purchase this product?            A) No. The CCU is not a firearm and will not fire without a pistol lower in place. The CCU is simply an accessory such as a scope or grips. For State and local laws you are advised to become aware of them relative to where you live. As far as Mech-Tech is aware, the CCU in and of itself is legal in all States. We do know that in the case of California the combination of the CCU and a pistol lower becomes illegal under current law.  If and when Mech-Tech becomes aware of any other special circumstances such as California, we will publish this information. Again, the customer has the responsibility to determine the legality of the combination in their circumstance.

Q) I have an older CCU with a welded on fixed stock. Can this be removed and the housing modified to accept the interchangeable stock system?                                 A) Mech-Tech does not offer this service. If you have the skills you can try this on your own and if the housing becomes unserviceable in the process you can always order a new housing. Also see the 'ACCESSORIES' page on this site just below the price table.

Q) Are CCU models available for pistols other than what is shown on this website? A) No

Q) Can the CCU be modified to fit pistols other than what is indicated on this site?      A) No. The CCU’s are quite pistol specific.

Q) Can I order directly on the internet from this site ?                                                         A) No. Please see our ‘CONTACT/ORDERING’ page on this website. We will be       adding on-line ordering sometime during 2010.

Q) Can I order parts for my CCU ?                                                                                     A) Yes. You can order as many parts as you want. There have been certain design changes over time and we need to determine which revision you have. Please contact  us for details.

Q) Can I shoot .45 ACP ammo in my .460 Rowland CCU?                                                A) No. Doing this can cause unsafe conditions.

Q) Can I shoot .45 Super ammo in my CCU chambered for .45 ACP ?                         A) No. Certain modifications are necessary to allow safe use of .45 Super ammo. Please contact Mech-Tech for details. NOTE: - we do not offer .45 Super modifications for Glock CCU’s chambered in .45 ACP.

Q) Does the 'basic' unit include any accessories or stocks ?                                         A) No. The customer needs to specify which items are wanted to add to the basic unit. The basic unit is however fully functional and will fire safely without any additions. Because there is so much variation in what customers want, Mech-Tech has arranged things so that a customer can 'build' a CCU just the way he/she desires.

Q) If I order accessories such as the Quadrail at a time after I purchased a CCU, can I get the factory to install these ?                                                                                           A) Yes. You need to contact us (see 'CONTACT' page) and make the necessary arrangements.

Q) I live in California - can I legally purchase a CCU ?                                                         A) Yes - the product by itself is legal BUT - again BUT - as we understand things the combination of the CCU and a pistol lower becomes illegal under CA assault rifle definitions. We are not qualified to give legal advice so CA residents need to be aware of relevant laws through their own efforts.

Q) Can I order a Glock CCU in .460 Rowland caliber ?                                                   A) No. We do not offer this.

Q) Can I print out the price list, check off what I want and send it to Mech-Tech as a prepaid order ?                                                                                                                     A) Yes - but there are some concerns. You will need to send certified funds (cashiers check/money order). You need to carefully specify the model you want. You must still contact Mech-Tech to get the shipping charges and determine if we have what you    want in stock.

Q) Can I get Mech-Tech to thread the muzzle ?                                                                A) No

Q) Is the Muzzle Dec threaded onto the muzzle ?                                                              A) No - it is pressed onto the muzzle.

Q) How do I remove the Muzzle Dec?                                                                                  A) The Dec must be machined off carefully.

Q) What kind of accuracy can I expect?                                                                              A) This depends on so many variables beyond the control of Mech-Tech that we do not specify a number. The CCU is not intended to be a bench rest rifle but there are many units being used in various competitive sports with great success.

Q) 1911 9MM and 38 Super CCU's using 45ACP lowers?                                              A) You can use a 1911 45ACP (or 10MM & 40S&W) lower with 9mm and 38 Super CCU's but it may require a change of the ejector on the 1911 lower. On some 1911 lowers a slightly different ejector is used for the 9mm and 38 Super cartridges. If the  particular lower you want to use with a 9mm or 38 Super CCU causes drag on the     CCU bolt then a change in the ejector on your lower will be necessary. This is an easy      fix and the 9mm/38 Super ejector will work fine with 45ACP/10MM/40S&W cartridges  with the original pistol reassembled.     

 

 

Technical STUFF

About the telescoping stocks (applies to glock and 1911 models):
The logical question arises: "Can I retrofit one of the new interchangeable stocks to my existing welded fixed stock model?" The answer is "not directly". What is necessary is to replace the welded-stock CCU housing with a redesigned housing. You can order the new housings directly from Mech-Tech - (please see the 'accessories' page on this website). When the new housing has been installed on your CCU, you can then use any of the stocks offered by Mech-Tech, or no stock at all if you prefer.
The Mech-Tech CCU in competitive shooting:
It seems that the Mech-Tech CCU is finding its way into the competitive shooting sports! We understand that it meets power factors suitable for the 3-gun events. A recent article in Front Sight magazine, organ of the USPSA, indicates the presence of the Mech-Tech unit in PCC events (July/August 2001 - pg.10). It makes sense of course to use a familiar grip and trigger pull for long gun shooting. This eliminates some important variables when making the switch. The power gains available from the 16+" barrel are significant. The CCU is designed with a special long-lead chamber which reduces peak pressure by about 25%.
Selecting ammunition for your CCU.
There are certain factors to consider when selecting ammunition for use in the CCU's.

The CCU is a 'blow back' type action. The main design element in a blow back is the weight (mass) of the bolt. This must be chosen to anticipate the 'hottest' loads encountered. The physics of a blow back action is such that the bolt mass and the bullet weight (mass) work together to limit the amount of the case which is allowed to move out of the chamber while the bullet is still in the bore. When the round is fired two things happen immediately:            1) the bullet begins to move out of the case mouth and up the bore
2) the case begins to move to the rear pressing against the breech face.
To elaborate, the case acts like a piston pushing out of the chamber to the rear and the only thing limiting the amount of movement of the case is the mass of the bolt - contrary to popular belief the recoil spring plays a negligible role in the initial case movement. The real design issue is to limit to a safe value the distance over which the case moves to the rear out of the chamber over the time that the bullet is still in the bore. As long as the bullet is in the bore the gas pressures are high and the case must have sufficient support to prevent case head blow-out or other pressure signs. The bolt weight in the CCU is enough for a good safely margin and as such the ammunition needs to be powerful enough for reliable ejection. 'Target' loads generally are not 'hot' enough. One should use the hotter factory loadings especially in 9mm where a +P loadings are best.
1911 ccu in 9mm luger caliber:
The 1911 CCU in 9MM usually requires no modifications for proper function. However, if you experience ejection problens then you may need to install a 'long finger' ejector in your pistol frame. We have found that EGW manufactures such an ejector and in most cases it can be installed onto a 1911 frame by a competent gunsmith at little cost. Mech-Tech Systems has the EGW ejectors for purchase if your pistol does not eject shells properly using our CCU. The ejectors are also avialable from Brownells - 641-623-8059 (p/n 296-100-038) or contact EGW directly at 215-348-9892 (p/n 'XL EJECTOR .38').

-  16.25" Stainless Steel Barrel - Button Rifled

-  Barrel Rifling: 1 in 16 Right Hand Twist (all calibers)

-  Weight (Basic Unit): Approximately 5.3 lbs.

-  Overall Lengths:   (with muzzle dec. add 2")

Glock:

  • - Fixed Stock                   33.29"                 
  • - Telescoping Stock        Min. 24.92"   Max. 33.42"             
  • - M4 Style Stock              Min. 29.25"   Max. 32.38"           

1911:

  • - Fixed Stock                    32.38"
  • - Telescoping Stock        Min. 24.00"    Max. 32.50"
  • - M4 Style Stock              Min. 28.34"    Max. 31.47"

     

-  Weaver-Style Sight Base Length: 5.75"

-  Straight Blowback Action