Airsoft Modified M16

The entire Midwest USA has now entered the late January deep freeze stage of Winter. I have been staying busy writing some airsoft gun troubleshooting tips over at the airsoft gun repair website but  this deep freeze for me seems like a perfect time to bench some of my own guns and get them ready for the upcoming 2010 airsoft season.
 My backup loadout includes among others a TM M16-A2. This gun was upgraded with a 120% spring (380-400FPS), steel gears, metal 6mm bushings and a V2 metal spring guide in July 2009, in October the gun started double and triple firing bb's and I lost most range. The problem was not real hard to locate as seen in the photo. My options are to just replace the gearbox shell knowing that at the current 390 FPS I will have to replace the gearbox again in 3 to 4 months cost ($39.90).  I could, downgrade the FPS to 350 or lower and not worry about cracking the gearbox again, or I could install one of the new V2 upgraded gearbox shells and see if it works as claimed. ($59-89)

Well since I like the Modify companies other airsoft upgrade products I have used in the past, I decided to go with the Modify Torus upgraded version two gearbox. I chose the 7mm gearbox model since the unit does not come with bearings or bushings and I already had the 7mm size metal bushings on hand. To save money I figured I would just transfer the rest of the old gearbox internals into this new shell. The unit does include a reinforced tappet plate, as standard tappets will not fit this gearbox.
All of my M16 TM components transferred into the modify torus design and fit nicely. I am impressed with the look and solid feel of this unit. I also like the idea of the open maintenance viewing ports machined into the face of this gearbox. This allows for lubrication and field inspection without opening up the gearbox.
 Once assembled this gearbox unit fit perfectly into my TM M16-A2 replica body and the completed airsoft gun chronographed at 397 FPS. Perfect. Now to see if it can hold up all season, under my heavy trigger finger.

Armsdealer...OUT!!!       

Version 6 Mechbox Repair

The version six airsoft gun mechbox has a few noticeable differences than the more common V2. The motor is encased allot like the V3 motor but mounted at a different angle in the mechbox. The internals are not the same as other gearboxes and several parts are specific for v6 models only. The tappet plate is one special part that should be kept on hand for your thompson airsoft machine gun. This mechbox is from a thompson airsoft machine gun repair that I completed for a WW II airsoft gamer who wanted his thompson shooting 375 fps. I also added a tight bore barrel and real wood grips. A reinforced tappet plate was added and a set of hardened steel gears along with a new shim job. If you need some help with your thompson repair visit our Version 6 airsoft gun repair pictures. Also if you are the proud owner of a P90 style airsoft gun you will find that this version 6 mechbox is installed in your airsoft gun as well.

Airsoft Gun Version 3 Mechbox Repairs

This week I have had many AK 47 repairs come across my bench for repairs and upgrades. After doing several I decided to grab up the camera and snap some photos for you. I was amazed at how well some of these came out and I posted them in a airsoft gun repair pictorial on the AGR website . Her is a nice close up of a version three airsoft gun mechbox.


I also have been adding alot of airsoft gun repair pictures to my Google web album. You will find more than 100 mechbox and airsoft gun repair photos here

Classic Army SAR M41 Offizier Airsoft Gun Repair

Worked on several guns today but the Classic Army SAR M41 Offizier (shown above) Airsoft Gun Repair was the one that had most of my attention. Sounded like it stripped a piston, making that "playing card in the bike spoke" whirring noise. Once I got the mechbox cracked open I quickly found that the real problem was with the sector gear.

The Classic Army Sar M41 is one of my favorites to work on. The simple breakdown of this airsoft gun makes it very easy to work on. Just a reminder on airsoft guns with version two mechboxes you must remove the motor and then remove the two screws inside the handgrip to seperate the mechbox from the body of the gun.
Here is the problem, notice the clean break off of the tooth on this sector gear. Most of the time this is a good indication that the gear had a weak spot in it.
This gun got a simple upgrade to 345 FPS and out of the shop it went. For more pics of this repair visit our airsoft gun repair pics page at www.airsoftgunrepair.com
I still have to give this Classic Army airsoft gun high marks for the overall build and simple field breakdown that this model offers. The metal body and RIS system are very solidly constructed and give the M41 a nice hefty feel. Overall this gun is as much fun to work on as it is to shoot...Well almost.

Airsmith

Jing Gong M4 commando airsoft gun upgrades

Jing Gong or better known as JG has released several new designs of AEG metal gearbox models. These airsoft guns come out of the box shooting airsoft bb's 360 to 370 FPS. The hop up unit on these new aeg models is extremely functional. One downfall I have noticed with these is the plastic bushings that come stock, need to be changed out after about 3 months of moderate to heavy use and metal bushings put in. Do to a slightly undersized bore in the mechbox the holes must be slightly enlarged with a dremel bit so they will accommodate standard 6mm oily metal bushings. As of this date I have worked on 9 of these and they all seem to have the same issue. If you put in the metal bushings without doing this the friction will be to great and the gun will not fire. By just adding the bushings, re-shimming and lapping the gears my JG M733 now chronographs at 385 FPS. Find out more airsoft gun upgrade info and view airsoft gun repair photographs at ABZ's Airsoft Gun Repair.Com