How to upgrade your MK23 [4k] 

For anyone attempting this with a clone MK23 (ASG and STTI), you will likely have a couple of issues when it comes to disassembly. Firstly, pushing the safety through in order to release the slide is massively stiff and will need a good few whacks to push it through, you’ll have no hope just using your fingers. Secondly, the outer barrel isn’t held on with a screw as it is with the TM MK23 as shown at 4:01. it will likely be held in place with a pin that, again, needs to be whacked out from right to left (when looking at the assembly from the same direction you’d aim). I had to spend ten minutes constantly whacking it with a hammer and a thin-pointed file and was convinced it wasn’t going to budge but eventually it did. Once this is out, the outer barrel will be very hard to pull off, so I wrapped the hop unit and the outer barrel separately with masking tape in order to get some grip on each and pulled, pulled, pulled until they came apart. All in all it’s a horrible job!

Absolutely fantastic video, every other forum post or video I have seen is just: "Buy this this this and this". As a first-time modder this is a gem of a video, cheers.

Amazing contribution to us mk23 enthusiasts, even I with my two left hands managed to follow this guide step by step and get this done right. I had to drill my outer barrel because I bought a 150mm inner barrel and it wouldn't fit through all the way, apart from that - everything went smoothly. Thank you!

That’s one of the Best tutorials I’ve seen, very clear and easy to follow, it will give me the confidence to do my TM MK23. Great Job 👍👍👍

This is the best tutorial vid i have ever watched

I wish you did more teching on other guns. This was the most clear and well shot upgrade i have seen...... absolutely amazing!!

Wow. Best tutorial. Imma attempt this on my ASG

hey ya pal, found this tutorial brilliant !! first time taking my ASG Mk23 apart and fitting new nub and hadron tdc and this made it easy .. tip of the boonie to ya

A great video! Really clear and easy to follow

Nice video and good explanation in detail

Awesome vid 👍🏻

Great review, I’m making one shortly on my channel on the asg mk23. Keep up the good work

Bel video, molto utile per upgradare la mia STTi MK23.Grazie!!

Thanks for the video. MK23 bought today and with 0.25BBs it chronos approx 252fps. We are allowed up to 295fps with 0.25s in NI . I'd like a little more so think I'll do these upgrades

Thank you very much, this was a godsend👍👍

Nice video

Thx dude ✌💪💪💪

extremely informative video, will definitely be following this to upgrade mine! can i ask where did you buy the parts?

just did the upgrade, but without the barrel. We'll see... Thanks for the vid

Thanks I know how to upgrade the pistol but I had no clue what parts to buy

Thanks for this, it's the clearest video on RU-vid!! Will it work with the ASG version?

I'm having nozzle grabbing issues with the Crazy Jet 150mm and 50 deg. Maple Leaf 2021 Autobot Bucking. I'm wondering if I did something wrong or bought a wrong component?

Nice, now I only need a MK23

Great video!!!! :) Can I use 180mm crazy jet barrel and extended it to the silencer ? Or do I need some mod for this ? Or should I just buy a 150mm barrel ? Thank you :)

May not get a answer but my hop wheel on my STTI moves very little. Like this much | | That isnt much and its kinda incosistent with the range and accuarcy but what do you expect with a clone and stock at that.

So with the twin screw TDC it lets you do corrections if your bb curves? I notice they have a 3 screw version would you recommend that one over the twin?

Are there any specific reasons to use the Autobot bucking and Crazy jet barrel? Or is it that any GBB equivalents work? This video is terrific. I would have had no idea how to do any of this just reading written instructions on forums - they're always so vague!

Nice video keep it like that!! It sounds ipmossible that a gun with 300fps, can lift 0.49g bbs 60-70 meters.. have you done a test video to see it in action? how is the grouping ? I have just got the same gun and I am plannign to install the same parts.. Thank you in advance.

Just a question, would the suppressor negate the effect of the crazy jet barrel? I have the ASG version where the suppressor has the extended barrel, so I'm not sure how this would affect the effect of the cover jet stream?

Do you have to leave the hop wheel in, or can you just put the arm on top with the in plate underneath and seal it up? I modded mine, and got it back together, and it shoots, but I wondered if removing the hop wheel entirely might let the hop arm sit a bit more flat on top of the bucking? (The hop wheel seems to pull it down a little squint from one side, if you know what I mean?)

Hey, if I want to use a 150mm Crazy Jet barrel, is there any modification needed at the hopup?

Hi I have just done the upgrade with the 150mm inner barrel but I am finding the barrel from the surpressor sticks out so you have any advice on it?

Nice one! been looking to upgrade my MK23 for a while. What do you think about going for a 150mm barrel of the 133? cheers

Ive bought all of these part but instead the longer barrel like you suggested, however this does NOT fit as the outer barrel gets smaller towards the end and will not allow for the barrel to protrude out the end?? Looks like I'm going to have to damage the outer barrel by chiselling the end out, which isnt ideal really...

Did this, but now my trigger gets stuck after i fire with the mag is in, its fine without the mag, it was also fine before the upgrade, when it gets stuck i can ether take the mag out or pull the slide back some cm. and then it resets the trigger. Any thoughts on what it is and what i can do?

Hard to come by a twin screw plate, will a single screw do?

mines arriving tomorrow

I'm planning on transforming my SSX in a DMR, and one of the changes will be a 350mm barrel. But how do I hide it? An M4 outer barrel?

What weight of BB are you using? I just this exact upgrade, but I'm getting fliers all over the place and I can't see anything visually wrong with the bucking. Any advice?

The basic question I would ask: is stock Tokyo Marui worth extra money, while compared to stock STTI or ASG?

how did you paint this? video plz :)

Are these the best upgrades for the mk23

I dont now if i buy the TM mk23 or the TM hi capa 5.1 gold match?

What does the price end up to be?

Hiya does Yr silencer have the inner barrel in?