colinjallen

What power is the spring?  What motor is it?
 
Maybe open it up and check the shimming; if that is ok, reassemble it without the piston, spring and ARL and try running it with the motor.
 
I do wonder whether Shamal has sussed it; it does sound like it could be reversed polarity.

It is the same hop as they use in their Scar-L: https://www.titano-store.com/en/c/airsoft-c28617/rifles-internal-spare-parts-c28847/hop-up-c28962/hop-up-chamber-scar-l-classic-army-p433m-p909683

 

show us your piston, don't be shy

A video of the gearbox cycling in semi and full auto would probably help us help you.
 
When you opened up the gearbox, did you take a look at the teeth on the piston?  Did they look worn or damaged?

What Shamal said was "I don't know of any gun club guns that have been used in school shootings."

Hamilton carried out a school shooting with the pistols that he used at his gun club.

If Shamal wants to argue around that, he can try.

Email should be better because customers and businesses need a record of conversations and agreements.

No, that was for another gun that needs to be brought back to life:).

Apologies all; I have been walking and wild camping on Dartmoor since that last post and have not had access online.

I have no idea what the issue was; I stripped the gearbox and ZCI hop down again, checked everything, reassembled it and, whizzo!  320FPS!

Dartmoor was fun; we found a rather large tag round.

Use it for a while and work out what you want to improve.  Then ask what people recommend to meet your requirements.

No, that was for another gun that needs to be brought back to life:).

Apologies all; I have been walking and wild camping on Dartmoor since that last post and have not had access online.

I have no idea what the issue was; I stripped the gearbox and ZCI hop down again, checked everything, reassembled it and, whizzo!  320FPS!

Dartmoor was fun; we found a rather large tag round.

Component Shop https://www.componentshop.co.uk
VapexTech https://www.vapextech.co.uk

Component Shop https://www.componentshop.co.uk
VapexTech https://www.vapextech.co.uk

I bought it because of the consistency; I was fed up with the inconsistency of normal gas pistols and their tendency to vent whenever they felt like it.

Even after upgrading it (wiring, bushings, spring etc etc), the low power and the sheer lack of fun annoyed me so I switched to a CO2 pistol, which really is great fun.

The ZCI barrel and Macaron will make a positive difference.  Did you fit an Omega nub as well?  If not, you really should with the Macaron.  

I have the CYMA mosfet version; it is ok, no more than that.  Even with the mosfet, the trigger response is sluggish; that, combined with the low power, makes it rather disappointing to use, which is why it has been in a cupboard for ages.

 

Oh dear!  That went right over your head, didn't it?

You stated that you will never change your opinion; I pointed out that was the position of a fool as only a fool will never be prepared to change their opinion.

Do you understand it now?

 

Oh dear!  That went right over your head, didn't it?

You stated that you will never change your opinion; I pointed out that was the position of a fool as only a fool will never be prepared to change their opinion.

Do you understand it now?

 

If you have an opinion and will never change it you are a fool; a wise person changes their opinions as new facts emerge, as John Maynard Keynes almost certainly did not say.

After playing for several years, I spent a few years marshalling at a couple of sites, although not concurrently.

The first one was unpaid, not even petrol money, but my two lads got to play for free; I was the pyro marshal (I have a bit of professional history with explosives), so had great fun blowing chunks out of earth mounds, old cars, ponds, the general landscape and, on one occasion, a structure (oops!).  All of the marshals thought nobody was getting paid until we found out that the chief marshal was getting £250 per day.  By then, my eldest son was also marshalling; we resigned at the end of a day which had started badly and got worse after a row with the site owner.  The chief marshal was sacked for supporting me and another marshal resigned in solidarity.

Not long after that, the marshal who had resigned in solidarity and I started playing at another site where, after a year or two, we both got roped into marshalling on the basis that my younger son could play for free (his older brother had given up airsoft as he now had real rifles to play with) as could his son.  However, we soon realised that the guy running the site was a bit of an arse and that most of the other marshals were a waste of space; the best run day was the occasion when the two of us were the only marshals on the site.  We quit and went back to playing at the site.

Since then, two site owners have asked me to marshal; I have learned my lesson so politely turned them down.

Marshals are essential to airsoft; however, too many sites abuse their goodwill.

After playing for several years, I spent a few years marshalling at a couple of sites, although not concurrently.

The first one was unpaid, not even petrol money, but my two lads got to play for free; I was the pyro marshal (I have a bit of professional history with explosives), so had great fun blowing chunks out of earth mounds, old cars, ponds, the general landscape and, on one occasion, a structure (oops!).  All of the marshals thought nobody was getting paid until we found out that the chief marshal was getting £250 per day.  By then, my eldest son was also marshalling; we resigned at the end of a day which had started badly and got worse after a row with the site owner.  The chief marshal was sacked for supporting me and another marshal resigned in solidarity.

Not long after that, the marshal who had resigned in solidarity and I started playing at another site where, after a year or two, we both got roped into marshalling on the basis that my younger son could play for free (his older brother had given up airsoft as he now had real rifles to play with) as could his son.  However, we soon realised that the guy running the site was a bit of an arse and that most of the other marshals were a waste of space; the best run day was the occasion when the two of us were the only marshals on the site.  We quit and went back to playing at the site.

Since then, two site owners have asked me to marshal; I have learned my lesson so politely turned them down.

Marshals are essential to airsoft; however, too many sites abuse their goodwill.

After playing for several years, I spent a few years marshalling at a couple of sites, although not concurrently.

The first one was unpaid, not even petrol money, but my two lads got to play for free; I was the pyro marshal (I have a bit of professional history with explosives), so had great fun blowing chunks out of earth mounds, old cars, ponds, the general landscape and, on one occasion, a structure (oops!).  All of the marshals thought nobody was getting paid until we found out that the chief marshal was getting £250 per day.  By then, my eldest son was also marshalling; we resigned at the end of a day which had started badly and got worse after a row with the site owner.  The chief marshal was sacked for supporting me and another marshal resigned in solidarity.

Not long after that, the marshal who had resigned in solidarity and I started playing at another site where, after a year or two, we both got roped into marshalling on the basis that my younger son could play for free (his older brother had given up airsoft as he now had real rifles to play with) as could his son.  However, we soon realised that the guy running the site was a bit of an arse and that most of the other marshals were a waste of space; the best run day was the occasion when the two of us were the only marshals on the site.  We quit and went back to playing at the site.

Since then, two site owners have asked me to marshal; I have learned my lesson so politely turned them down.

Marshals are essential to airsoft; however, too many sites abuse their goodwill.

You remind me of a certain former president..
With that being said, you can fuck off back in your mom's basement.
This is a forum, not Facebook. If you don't like how things work here, if you don't want to wait for people to write down a somewhat detailed answer then this is not the place for you.
I (just like everybody else in here) don't have an obligation to answer your questions, even more when you expect them within a minute from the moment you click "post/send/reply".
I can reply whenever I want, even if it's 3 am for you, that's how forums have worked since they were first invented (and in case you haven't noticed, it's how this forum works as well) and nobody ever took it personally, unlike you.
 
You clearly don't like me (and a few other members), but guess what, I'm not losing my sleep over a random bag of sadness who doesn't fancy having a nice, calm discussion
 
Will I get a warning from the admin team for not being nice? So be it.
Will I get banned for not being nice? So be it.
 
Have a nice day,
Skara Out.

Yes, changing the spring for a slightly weaker one, or cutting down the spring, would do the trick.

There is a good video guide here: 

And here:
 

If it has been modified and a different spring fitted, you may not need to open the gearbox.

I have used the Combat Union hop unit with a ZCI 6.02mm barrel, Maple Leaf Macaron rubber and Omega nub to great effect with regards to range and accuracy in a CYMA AKM, an LCT AKMS and an LCT PP-19-01.

Clearly in love with his own right hand.