G&G combat machine appraisal

[K@rl]

Pmd

 

[Mr Monkey Nuts]

It's not a spring issue, it's an air seal issue.

this airsoft notion that leaving a spring cocked will cause it to fail is ridiculous, it may reduce it's life and rebound by a few FPS but will not kill a beefy main spring outright.

270 FPS is 80 FPS loss from what we expect of g&gs which are often hot. 80 is too much even for a tired, worn spring. The fact the previous tech has replaced the air nozzle and hopup unit reinforces it has a pre terminal air seal issue. They most likely threw in a stronger m110 spring because they couldn't fix it. You will possibly need a m140 to plaster over the crack, who will kill the motor.

My gut is a Cracked shell causing an un identifiable leak, but without stripping the box we will never know, hence why it's a project.

Certainly spend an hour with some fairy power spray, and maybe some paint to tidy it up will add a few quids.

Nobody should be buying 2nd hand batteries, we don't know the life cylcle or workl load of them, they are always a hassle, especially as they are so cheap.

Pack of 5 Mid caps are worth £30 +p of anyone cash. But again we don't know their work load.

Hi caps worth £5 a piece.

It wasn't a dig at all, and I'm not pushing anyone any direction, just sharing my experience.

I was the person buying this gun when I started, and I had my fingers burnt badly, I don't want to see someone else buy a broken gun and I don't want you to have the hassle when someone who does known what their are looking for comes back for your blood.

For reference the mags are £55 and the gun is £120 brand new.

 

[K@rl]

Thank you. My thoughts exactly. I already have a "full" collection. Really only interested in the mags and to have a spare charger. However might be a good project gun. I Pmd him an said I'd be interested as a spares package.

 

[Sitting Duck]

if it was a cracked shell - you would of thought it would have been noticed/picked up when nozzle fitted

still could be but my guess is air leak is mostly other areas like usual:

hop/bucking - box out of alignment, pi$$ poor seal - the G&G piston head I've never been happy with compression seal

and perhaps a worn spring - it was 2nd hand and most are about 330-340 so 10% spring loss overtime

other 10% worn bits/crap seals

this is all guess work though - could be cracked - but just slip off the top receiver & closely examine both sides of front end of box

is it normal or blowback box - blowback's have a slight increase in risk of cracking I'm lead to think

but slip off front end to check

blowback if not assmbled correctly can have an airloss too so this is where perhaps my money is going

needing full cylinder for 357/363mm barrel if blowback - and good seals - head needs port for bb btw

 

[ImTriggerHappy]

It's not a spring issue, it's an air seal issue.

this airsoft notion that leaving a spring cocked will cause it to fail is ridiculous, it may reduce it's life and rebound by a few FPS but will not kill a beefy main spring outright.

270 FPS is 80 FPS loss from what we expect of g&gs which are often hot. 80 is too much even for a tired, worn spring. The fact the previous tech has replaced the air nozzle and hopup unit reinforces it has a pre terminal air seal issue. They most likely threw in a stronger m110 spring because they couldn't fix it. You will possibly need a m140 to plaster over the crack, who will kill the motor.

My gut is a Cracked shell causing an un identifiable leak, but without stripping the box we will never know, hence why it's a project.

Certainly spend an hour with some fairy power spray, and maybe some paint to tidy it up will add a few quids.

Nobody should be buying 2nd hand batteries, we don't know the life cylcle or workl load of them, they are always a hassle, especially as they are so cheap.

Pack of 5 Mid caps are worth £30 +p of anyone cash. But again we don't know their work load.

Hi caps worth £5 a piece.

It wasn't a dig at all, and I'm not pushing anyone any direction, just sharing my experience.

I was the person buying this gun when I started, and I had my fingers burnt badly, I don't want to see someone else buy a broken gun and I don't want you to have the hassle when someone who does known what their are looking for comes back for your blood.

For reference the mags are £55 and the gun is £120 brand new.

There are a lot of assumptions in that statement. You could be spot on but.....
Dont know what spring is in there in the first place. Could of been an m95 and shooting about 310/fps in the first place, that would work out to a 40fps loss which is easily possible with a shot spring.

I have seen a compressed spring drop 50fps. So it is possibly the spring.

I personally reckon its probably an air seal issue but wouldnt leap straight to a cracked box. Could be a shot o-ring on the nozzle coupled with a poorly fitted bucking that will drop fps massively.

There are lots of things that can cause an fps drop and most are pretty simple fixes.

Change, spring check seals, reassemble hop using a bit of ptfe. Takes 45 minutes and cost about £16. If that doesn't work then yes it might be a cracked box.

But without looking nobody knows.

Op should check all the basics to improve fps before sale and clean up the exterior.

If thats beyond him then sell as parts or lower the price maybe but lets not consign it to the boneyard on assumptions just yet.

 

[K@rl]

Like he said a tech did all the work. So let's, for a second, assume that the tech isn't a total spoon. Don't u think he would have tried the "simple" fixes. Just sticking a stiffer spring in is either goin to completely destroy what working parts are left or mask an underlying problem which will piss off buyer.

 

[ImTriggerHappy]

Like he said a tech did all the work. So let's, for a second, assume that the tech isn't a total spoon. Don't u think he would have tried the "simple" fixes. Just sticking a stiffer spring in is either goin to completely destroy what working parts are left or mask an underlying problem which will piss off buyer.

No you check seals and if thats not the issue you try an m100 spring.No ones saying chuck an m140 in it.

Aeg's are pretty simple things its not like there are a million moving parts and so most fixes are pretty simple.

Who knows if the fps drop occurred after the tech had it.

Are you still fishing for a lower price??

 

[K@rl]

Not at all. Already told him (pm) am not interested in a working package so he is goin to get it checked again by his tech if it can't be fixed I will take it as a spares package. We are now all debating what we think is wrong, hopefully he will let us all know what it was.

So..... Would anyone like a guess as to what it is. One guess per person. Closest guess gets bragging rights.

If he does get it fixed it would make a great starter package for someone. And as am taking 20 noobs to play on the 23 rd am sure I will know someone.

 

[ImTriggerHappy]

Not at all. Already told him (pm) am not interested in a working package so he is goin to get it checked again by his tech if it can't be fixed I will take it as a spares package. We are now all debating what we think is wrong, hopefully he will let us all know what it was.

So..... Would anyone like a guess as to what it is. One guess per person. Closest guess gets bragging rights.

My guess:
The problem is its a G&G combat masheep.

 

[K@rl]

My guess:

The problem is its a G&G combat masheep.

No no. Come on, answers on the back of a post card. Time to put the nuts on the line

 

[ImTriggerHappy]

Poor air seal from nozzle and hop would be my first guess.

 

[K@rl]

Just for shits .......

What do u think it would be worth as a spares package just befor he spends money on it. As a fully working it may only be worth approx £100. If it cost £30-40 for a tech to fix it might not b worth it for him. That being said it may cost £5.

 

[K@rl]

Poor air seal from nozzle and hop would be my first guess.

Agreed but am goin to say it's due to poor installation of new parts.

 

[Jedi_Master]

If I had to guess, and having no idea on anything technical, then because it is really a JustBB gun

 

[Sitting Duck]

I'm gonna gamble it could be a blowback and the little blowback cylinder piston is pi$$ing out air since he got it

I don't need bragging rights I naturally ooze 101% pure bollocks

 

[K@rl]

Thoughts on what it's worth as is?

 

[Sacarathe]

Define "it".

EDIT (Those who don't know how to edit look closely):

It = the gun, or everything.

 

[K@rl]

As a spares package.

 

[Sitting Duck]

£85 posted

Could split mags say £30 posted

Charger batteries £15 posted

Gun....

As is £50 - maybe £55 posted

A carbine is say £125 posted from z1

70% of that = £87:50

So in its present state of low fps 2-tone battleworn

Yup about £55 posted

Comes out about £100 for shipping 3 parcels

Or £85 if buying the lot

As Scarathe said £25 off original price

If blowback - plop in a normal head and blow the blowback crap

Alas it's a carbine - where do I attach my badass grip/torch/laser etc.....

Raider or other ris model might be worth a bit more

I could be wrong and soz if offends but about them prices is maybe what I feel it could be realistically worth.

Shame you ain't close I'd say gis a go at it and I'll buy if I couldn't help it get some of its mojo back

 

[Aengus]

£85 posted

Could split mags say £30 posted

Charger batteries £15 posted

Gun....

As is £50 - maybe £55 posted

A carbine is say £125 posted from z1

70% of that = £87:50

So in its present state of low fps 2-tone battleworn

Yup about £55 posted

Comes out about £100 for shipping 3 parcels

Or £85 if buying the lot

As Scarathe said £25 off original price

If blowback - plop in a normal head and blow the blowback crap

Alas it's a carbine - where do I attach my badass grip/torch/laser etc.....

Raider or other ris model might be worth a bit more

I could be wrong and soz if offends but about them prices is maybe what I feel it could be realistically worth.

Shame you ain't close I'd say gis a go at it and I'll buy if I couldn't help it get some of its mojo back

Don't think it's blow back as there's no bolt. Thanks for the help