MP7 Airsoft Gun Repairs

The MP7 series is a compaq little mini airsoft sub machine gun. These are now being manufactured by at least 4 airsoft gun companies including Well, TM, Galaxy and Tactical Force airsoft. The stock FPS averages about 250 FPS with a ROF of around 600 bb's a minute. This is perfect for indoor CQB style airsofting.

I have had the opportunity to perform repairs on this mini machine gun and I have to say they are fairly difficult to work on. The internals consist of a 4 gear transfer unit instead of the more common 3 gearset found in other AEG's. Airsoft Gun Parts for the MP7 can be hard to find as well. I do not recommend upgrading these above 300 FPS as the gear shafts and pinion gear are maxed out at this velocity.

There is nothing standard on this gun compared to other gearbox versions. Even the hop up units are unique to this gun. I have added more MP7 airsoft gun repair pictures here for you to use should you decide to attempt upgrades or repairs on your own. The mini size gearbox is easiest to remove from the rear of the gun once you have removed the sliding stock. Gear shimming is crucial to the proper operation of this gearbox and should be performed very carefully.

The MP7 is an extremely fun airsoft gun and great to carry as a secondary back up weapon. You can expect if using .12 gram seamless bb's to accurately shoot 60 to 70 feet. As I said above these are great close quarters weapons for indoor airsoft games. I would suggest getting one or two extra 7.2 volt batteries as these small packs seem to die after a few hours of sharing the welts with friends.

Till next time....

Armsdealer Out!

Cracked Airsoft Gearbox Repair Facts

Airsoft Gun Fact: Standard and re-inforced airsoft gun gearboxes are not engineered or designed to handle the stresses created by airsoft gun upgrade velocities over 400 FPS.

Actually I find most metal gearbox airsoft guns, If properly upgraded to 350 FPS and with proper hop up maintenance to be the longest shooting and most durable working upgrades for most airsoft OEM gearboxes. The Re-inforced gearboxes do absorb vibrations and the increased weight helps with noise dampening, but the spot that breaks on most V2 boxes was not really re-inforced by this upgrade leaving them just as susceptible to nose cracking as the non re-inforced versions.

Systema has a nice airsoft unit engineered to shoot 565 FPS and it seems to work and last....However this does not mean that all you need to do is put systema parts in your standard AEG gearbox and you can achieve this as well. Most gearboxes on the market are engineered with 400 FPS being the Maximum and 350 FPS being the recommended. Most US based airsoft gun service centers will not upgrade above 400 foot per second without voiding any warranty programs.

I prefer to upgrade my airsoft guns to the 350 FPS point and raise the rate of fire to 20 to 25 bb's a second with steel high speed gears. The Modular airsoft gears are fantastic and last a very long time when installed this way. The spring I use is one that will land my guns in the 330FPS range and the addition of a metal spring guide with a thrust bearing rounds the upgraded gun out to 345-350 FPS when using .20 gram bb's. Plenty of firepower for any airsoft game!

One final note on the subject...The new KWA 8MM V2 gearbox units seem to have incorporated what might be a solid engineered solution to mechbox nose cracking issues by modifying the actual nose of the gear box and creating an interlocking set of staggered fingers that seem to absorb the shock and vibration created by the piston. Not sure what the actual limitations are on these but one can contact KWA USA and I am sure they would be happy to provide the new gearbox specifications. Better yet just buy one of the new KWA M4's as they will keep you in the game sharing welts...Long Time!

Armsdealer...OUT!

Airsoft Gun Custom Gearbox

....Meet the Scirminator Mechbox!

While airsoft players all over the world are searching for the "perfect airsoft gun" we decided to build it one piece at a time from the inside out.

Built with all custom after market parts the Scirminator "Scrambler Series" Mechbox will send 25+ bb's a second downrange at 350 FPS. So much for needing a Squad Automatic Weapon.

For those of you looking to pack more .20 gram punch, the Scirminator "Plastic Pain Series" Gearbox features the same sizzling ROF of 25 bb's a second as the "Scrambler" but increases velocity to a blazing and painful 400 FPS.

AGR has been building, tweaking and testing, the Scirminator series gearbox designs in rental airsoft guns at the Airsoft Battle Zone field for most of 2008 and players have been impressed with each new build. All year we have been asked where do I get one?? Here is the answer:

The Scirminator gearbox rebuild kit will fit in any non reinforced Version 2 or Version 3 airsoft gearbox. Yes it will fit your Tokyo Mauri or a Classic Army Sportline, Crossman, Jing Gong, Echo1, Cyma and most other popular airsoft brands. The skirminator gearbox rebuild kit comes with all the parts and instructions needed for you to upgrade your existing gearbox to a Scirminator.

For those of you who are mechanically impaired Airsoft Gun Repair Technicians are available to install the kit in your existing gearbox if you ship it to the Wisconsin airsoft repair center.

Drop in gearbox models are available for V2 and V3 airsoft guns as well. These include a new gearbox with the Scirminator internals already installed...Just field strip your airsoft gun...remove the old mechbox and drop in your new scirminator gearbox.

For more details and specifications you will have to visit the guys over at Airsoft Gun Repair .Com, here you can purchase the scirmanator kits or mechboxes and find out all the finer details of this custom upgrade

One final note...The scirminator comes with AGR's exclusive 3 month or 30,000 bb airsoft gun guarantee on the drop in style gearboxes. This warranty also applies to airsoft guns sent in to be outfitted with the upgrade by our airsmiths. The DIY kit does not include this warranty although the individual parts are warranted from defects.