This is the first and best tuturial video I have seen when I was new to airsoft. This is still the best until today!

Great instruction video! It's so clear to understand the MechBox maintenance for me, debutant of Tokyo marui M733 user. Thank you anyway for all of your other videos, too. nash airsofter from Japan.

wow so these mechboxs are a super easy fix. buying parts seems easy.

Great Video!!! very easyly explained!!! Good hints !

I can`t think of pressing my spring that easily back into the mechbox... and i have just a 130 spring... so i guess the video shows a 20 spring, since he had it that easily done :D Not to mention what a miracle video it was to reassembly all in like what? Five minutes? I have to use force to keep it all together and sometimes i call for a 3rd and 4th hand to help me.....

Watching this video makes me thank quick change springs

This has helped me alot

Thankyou thankyou thankyou.... Great video!

Thanks this is an awesome video! :)

great vid thanks

Yes. Most common are 6mm, but some gearboxes use 7 or 8mm.

thanks for the info.

That depends on the brand of gun. For most quality brands, you can upgrade the spring, while leaving all other parts standard. With the cheaper brands, I would change pretty much all internal parts. At the very least, the gears.

Thank you!

@neovictorius ooh okk, thaannks man.

You should always glue the bushings in if they aren't so tight that they are mechanically locked in place. I have seen several gearboxes ruined by un-glued bushings. What happens is that the bushings start rotating in the mounting hole, causing wear to the hole. This widens the hole, and this upsets gear center distances and cause gears to strip. You have to replace the entire gearbox shell if this happens.

nostalgic asf

yes it is possable but its good to clean your gears and stuff but watch this video or others a few times to make sure you have the procedure down

Alright, Thanks.

@crazyman9914 assuming your talking about a .2 gram BB then all you need to do is replace the spring...If its in an AEG then the spring thats in it, depending on air seal, could be anything from a S130 spring to a S150. So to get it down to the 300 FPS you need to replace the current spring with a 100 spring. That will get about 300 roughly.

@Marcello143 i dont know why bbs were rolling out but the drilling noise is normal... its the spring just buzzing. my friend has the exact CQB M15A4 by CA as you and it does the same thing. It isnt a bad thing. If you switch the spring to an S110 it will go away and you SHOULD get around 360-380 fps. probably higher up... but you dont have to unless the noise bugs you

@TaylorCountyAirsoft If you have a crappy stock part, choose to buy an upgraded part then install it.

@xXxDoubledotxXx Here is a tip: grind the hole for the trigger a little wider, then assemble the GB without the trigger, and when you got it, put the trigger in by only ever so slightly opening the bottom of the gearbox. That is how it its done on V3s (they are even bigger bitches when it comes to the trigger), and it should work with V2s also, if you grind the hole bigger.

yes. locktite is a brand name.

Such a good fucking video!!

@HGClark yes i do...

heh, i like that intro video...

I didn't touch the motor. I found out later that the new spring guide I got just sucked. I put in the stock spring and stock spring guide and now its fine.

@bazengao not trying to disagree with you or fight with you but i have worn though my nylon bushing before and replaced them with ball bearings. Wasnt to expensive i think i was about 20$ not to bad and i havnt had to replace them sense. do agree with you about nylon being self lubricated.

@randomperson12494 Metal Bushings can take serious Abuse, Plastic and Ball Bearing Bushings can not. And The Pistonhead and Springuide Bearings help with spring-life and will increase FPS, as well as leading to a more consistent FPS-output

i want to reduce the fps of my airsoft gun that shoot around 480 fps to 300 fps and i would like to know if I just have to replace the spring or something else?

I have a Classic Army M15A4 SOCOM cqb aeg, and it makes a vibration/ cordless drill noise after I shoot. Then just last night it started making a popping noise and bb's were spilling out of the barrel while I was shooting.. I kept firing and the popping and dripping bb's were sorted out.. But it still makes that vibration and cordless drill noise for about half a second after every shot.. What could all of this be cause by?

@SoSteezyFeelSoEzee No problem :) but be sure to go for like Systema springs or something AND NOT THE STAINLESS ONES - they have an easier chance of breaking

Rootbeer31@ no you should use an easily breakable paste incase you have to get back into your gearbox to make adjustments or upgrade again.

You should do a video on a v1 gearbox

whats the benefit of metal bushings and ball bearing piston head?

Can I use teflon grease for piston and piston head.

@andromedarr thanks

Hello i am new to higher end gearboxes and i want to know if it will be easy for my first time upgrading a gearbox and putting it back together? I will be using an Echo1 MK5A5 SG-2 version. I will probably be putting a new spring, piston, piston head, air seal nozzel, spring guide, and all that stuff at the top of the gearbox. Not the gears or wires or bushings cause they are metal and maybe the shims and motor. Got any suggestions?

hi could someone answer this please? i have a v2 gearbox, and i dont see the point in doing all this dissasebly if all i want is a upgraded spring, is it possible to just take out the spring and not mess w/ the bushings and the gears and all tht crap??? i only got my gun a week or two ago...

what do bushings and bearings do, in comparison to the shimms?

Hey on my M4, I noticed that one of the wires was a little torn up where the motor comes in contact with the gear box, i'm guessing it was because the motor probably tore it a little bit while it was spinning the gears. Do you know how to avoid it from being torn apart from the motor? Thanks

My m4 is unable to penetrate cardboard, with this new spring upgrade and a high torque upgrade, will i be able to break through cardboard ?

I have a quick question: How much play should the piston heave when sliding in the gearbox? My G&P piston has both vertical and side to side play and it kind on concerns me.

my anti reversal latch is poping out and poping out the first gear... can I help myself with anything?

Do you really have to put threadlock on every screw? And if so, how permanent is it, because I want to put a heavier spring in my gun to play with my friends, and then downgrade it every 2 weeks for one day to play at a local field, so would the threadlock stuff interfere with that at all?

I have a Stag 15 Echo 1 M4, would the steps for a gearbox disassemble be the same with that stock gearbox?

Do you think my Tokyo Marui AK47 will shoot with the same durability after i install theese internal upgrades? Guarder A.E.G. SP110 Prometheus Metal Bushing w/6mm Bearing Systema Metal Shim Set Systema Spring Guide with Bearing VER III btw Good tutorial!

how often should i clean and re-greese the inside of my gear box?

What do you use to SHIM GEARS ? Abs what should you spray silicon oil on ? Please reply

Ive tried to asemble my v2 gearbox multiple times but every time I put it back together the gears lock and they make a clicking noise when the trigger is pulled. any suggestions?

yea

do all the upgrade gear boxes fit any airsoft . Like if i bought a m-16a4 and got the newest gear box would it fit ??

My cylinder has a large cut out in it which way do i install it?

@neovictorius oh ok :D cause i didn't really understand the videeeo... So whats stronger than a s110 spring, that wont destry a G&G's internals?

I have a full autop MP5 its as GSG (German Sports Gun) and I'm looking to upgrade the spring to make it more powerful. Can anyone help with any tips or ideas? Just reply thank you

@Mechbox6mm new to airsoft, making a clone to my,ar15s for training at home. Got a jg m16a4 ris, what should be the first upgrade aside from shims?

i have a utg mp5 with a version 2 gearbox, are the steps the same with any v2 gearbox or are they specific to the model?

Isn't using a Q-Tip a bit risky, i get threads falling out when using them for my ears, wouldn't threads get caught in the gears?

That happens to me too on my Ares G36 (v3 gearbox). Everytime I reassemble it, it will fire for a little bit then it locks up and firing just causes it to make a dull thud noise. Have you gotten it fixed since then?

What upgrading all those parts do for the gun?

I'm having a problem with my piston. When I try to remove the head of the piston it just turns and turns and turns...but I can't remove it. Any suggestions how to get it off?

How did you make your anti reversal latch stay in place?

my piston head just keeps spinning, any ideas?

where is the spring to install an FPS spring. and what spring is best for an M4 is i want to get it to about 380-400fps. please note i dont use these in airsoft matches :)

ANY SPECIAL TIPS FOR IGNITE M4 VIPER ?

Do I need to do all that just to replace the spring?

Is the shown Mechbox in this video somewhat the same as the TM Mp5 Mechbox? if not, whats different?

@Mechbox6mm I was wondering what thread lock is

Is this way to do this the same on all V.2 gearboxes? -Thanks

when you upgraded your airsoft gun what the fps be?

Hey can I put a 140 spring in the standard Silver Edge gearbox for long term use?

my jg comes stockwith a mighty m120 sprig. this pushes around 430 fps stock

thanks, but do you know what it's commonly referred to or anything like that? i really would like to listen to it.

pretty much

when i tried to play it today, it wouldn't play, it says "this video is currently unavailable" how do i fix this?

How would i upgrade the spring?

i think they use 7mm for the ver3 gearbox now

Does this also M16A4 dboys tuning?

Are version 2 gearboxes harder to work on than version 3 gearboxes?

you sound like someone that could be on metal gear solid

what is the song they use for their intro?

i would suggest only using blue locktite never red. Red is permanent blue can be broken with some force

This movie was cut short... It's only 1:48 long. 1 star...

@crazyman9914 @usmcsniper92 s100 gives me 350 fps. if you want 300 fps you cant have a tightbore barrel and use an m90 spring.

@SoSteezyFeelSoEzee erm... I do not know aabout G&G but a M120 spring never was a bad idea.. but then again I do not know if the G&G can take that much, without getting destroyed.... a standard CA AEG usually can take a M120 spring... (There's also M150, M170 and so on, but then you would be have to put in a new motor for sure and probably also new gears) - anyways look around on the internet :)

ooo thats a bad gear timing, take it apart agai and twist the sector gear to the right (face gearbox to the right with nozzle side facing right) untill the last tooth is at about the 2 o clock position now just reset everything, re lube piston head and cylander and now try, i guaranteee better results

it is full metal gear box?

12:47 - 12:49

@DrewRod13 piston

I wish my trigger would stay as still as his...

some o fits t8 like jg takes t8 not t10

yes but out of experience do not use alot. i took my mechbox apart and used to much loctite onone of the screw. turns out i had fucked the assembly up so had to take themechbox apart again. cos i put so much loctite on it took me three ours of creativity to get the fucking box apart again.

he forgot to tell them to screw on the little metal plate protecting the wires on the outside of the gearbox... but its kinda a dummy thing any ways

@jcheatham56109 im about to blow up my gearbox because of it

grease*

gear grease when it says gear grease

The damn trigger won't stay on wtf ??!!!

@jcheatham56109 Then you haven't live for long. ;)

damn too much for meh