G&G Mp5

[mccarty95]

Hello all,
I am relatively new to the airsoft world and i have a G&G mp5. To be exact: http://www.airsoftgi.com/product_info.p ... ts_id=2682

I was wondering what tightbore barrels are compatible, upgraded cylinders, etc. Links would be helpful. And is this gun ready for 11.1v lipo?
Thanks

[G36 FTW]

Hello all,
I am relatively new to the airsoft world and i have a G&G mp5. To be exact: http://www.airsoftgi.com/product_info.p ... ts_id=2682

I was wondering what tightbore barrels are compatible, upgraded cylinders, etc. Links would be helpful. And is this gun ready for 11.1v lipo?
Thanks

All AEG cut tight bore barrels should fit your G&G, just make sure they are the right length.

And as for other internal upgrades, all gearbox parts built for the V.2 (version 2) gearbox should work. I cannot provide you with a link to every single upgrade part, thats up to you.

As for an 11.1v lipo, it would work for a while. But G&G's wiring isn't the greatest, and you'll end up breaking your gun rather quickly. IIRC, the G&G MP5's have a ridiculous rof already, so personally I'd just stick with a 9.6v battery.

[mccarty95]

Wow, quick reply. Thank you. All right. One more question: the inner barrel length is 225mm (I think). Is it possible to use a slightly longer barrel? i.e. like 260mm, etc.

[G36 FTW]

You'd have about 2 inches of inner barrel exposed, so you would need a barrel extension (usually found in the form of a mock silencer).

But 30 extra mm of inner barrel will hardly improve accuracy at all, you might as well save your money and just buy a 225mm barrel.

[mccarty95]

ok, thanks!

[Regular Guy]

I love G&G MP5 series especially the ones with H&K trademarks.



It will fit the small King Arms Lipo battery which is 7.4v. I'm currently using a 9.6 nunchuck style battery on mine. All stock internals. Great performance for CQB scenario even without upgrades.

[mccarty95]

Ok, so I've spent time watching videos about internals of airsoft gun and I took mine apart and put it back together. I understand most things now. Also, G36 FTW, I am into R/C, so I could easily rewire the gun and with upgraded everything I could probably run 11.1 v. Put some 14ga or 12ga wire on it.

[Nec]

I was wondering what tightbore barrels are compatible, upgraded cylinders, etc. Links would be helpful.

95% of all gearbox aftermarket parts are compatible with G&Gs.

And is this gun ready for 11.1v lipo?

I usually say “every gun is lipo ready” but I must say I am not too impressed with G&G gear seats. Their Motors aren’t too “punchy” and have low speed and torque for such a high end gun. 18AWG is standard G&G wire; it would be nice to see a bigger gauge of wire used such as 16AWG or 14AWG because they can handle the amperage load of Lipos better. I’ve owned two G&G UMPs and have worked on more than a half-a-dozen G&Gs including their blowback series. Both of my G&G gear sets went belly up within about 50,000 rounds or so and about half of all G&G’s that come to me have stripped gears. On the other hand my best friend has only seen a few G&G gear sets fail, maybe all the bad sets come to me? I don't know, but from what I've seen I don't like G&G gears.


Here are two of the latest cases;

G&G non-blowback M4, This guy came in telling me the pinion gear is stripped come to find out 1/3 of the spur gear was completely stripped! He bought this gun about 2 years ago it has been used almost everyone other weekend and has only been using NiMh batteries!




This next case is from a G&G Blow-back series; guy came in and asked for a simple MOSFET installation. When I opened the gearbox to install new wiring I found two teeth on sector gear and one tooth on the spur gear stripped off. IIRC this guy has had the gun for a little more than a year and just recently used 11.1v lipos.






I would replace the barrel with a tightbore, as according to my findings their inner diameter is 6.14!






Now this isn’t to say I hate G&G’s, I just don’t like their gear sets, their motors seem “weak” compared to many others and their barrels could be tighter. Their Hop-up buckings (namely their green ones) are always on my top list due to their good accuracy and great FPS. G&G air seal is amongst best in class compared to CA and ICS. G&G pistons are always a favorite of mine (AOE needs to be corrected out of the box, but that’s very common.) especially their piston heads, I don’t know but maybe it’s the cool “vortex” looking piston heads they have but I’ve never seen nor heard of any G&G piston heads breaking. I’m still using a G&G piston head I got 3 years ago in my JG G36k shooting 380 FPS at 25 RPS, that thing’s been through easily 400,000 rounds! One thing I always give props to G&G for is their ball bearings they use in their piston head, they aren’t super tight like most other brands their nice and loose because after all what’s the point of ball bearings if the balls can’t move! The screw feels tight enough to not fail.


What’s interesting about G&G’s gearboxs is the screws are on the left side instead of the right side of gearbox like 99% of all other brands and their use of “brass” or supposedly brass bushings. The newer models seem to come with ball bears instead of bushings now (*source needed). I’ve seen no reports of problems with the brass bushings and as for the screw placement I just find it annoying. Pictures;


Please note: This G&G gearbox’s cylinder and screws are NOT stock. ALL G&G gearbox screws use Allen keys instead of Phillips. This is just to show the placement of the screws.

[mccarty95]

Interesting, is there any aftermarket gears? If so, what brand would be the best?

[Jewish Ninja]

http://www.airsoftgi.com/product_info.p ... ts_id=3171

If you want to up your ROF, I'd suggest these. I have a set in my TM P90 and haven't had any issues with them.

[Nec]

Interesting, is there any aftermarket gears? If so, what brand would be the best?

First off I would stay away from Systema and Classic Army gears. I have two sets of Systema gears in my "broken box", the teeth seem weak and after ~50,000 rounds the teeth start to bend making a lot of noise. I myself have 2 confirmed cases of new gen stock Classic Army gears stripping within less than 40,000 rounds. A best friend of mine, who works on more AEGs than I do, has seen more than a dozen cases where Classic Army gears stripped under stock conditions. I'll have pictures to post of these gear sets later today.

My favorite gear set, if you can get them second hand are ICS gears. Three of my guns have ICS gears with well over 100,000.

[Regular Guy]

Ok, so I've spent time watching videos about internals of airsoft gun and I took mine apart and put it back together. I understand most things now. Also, G36 FTW, I am into R/C, so I could easily rewire the gun and with upgraded everything I could probably run 11.1 v. Put some 14ga or 12ga wire on it.

As long as you can fix problems on any internal parts go for it. Good luck!

[mccarty95]

This was on the mp5 and its the plate that covers the motor. This big screw pushes the motor in. What does it do? would it be bad for it to be tight or loose?

Uhh, how do you upload a picture?

[phantom -VSR-]

Are you talking about the screw in the middle? If so, that adjusts the motor height. To upload a picture you have to upload it to photobucket.com then just copy and paste the image URL straight into the post.

[mccarty95]

Yea, the screw in the middle. Does the motor height matter?