How to cut aeg spring to downgrade

Andrewrob

This is my first time doing this. I am trying to downgrade my g&g sr 25 its shooting at 1.10 joules with .2g bb's at the minutes. How much do I take off and where do I cut it etc..

Thanks in advance

bullets

If you can, drop it into an airsoft shop!
If you have bought it from an Irish retailer they will be more than willing to take
the gun back and rectify the situation since anything they sell should not be above 1j.

I opened my gear box on a JLS scar that was fireing over the limit to cut the spring, and surprisingly the spring was tougher than the snips that I used to try and cut it, and it actually broke my snips! Also could not get the gear box back together with the trigger spring intact, and when I reassembled the gun it jammed after one shot.
Hence my only SCAR in my collection is a collection of parts rather than a gun.

You could try drilling a tiny tiny hole in the nozzle or cylinder
to let some air leak and make the fps less. Although that could absoultly wreck the gun.


~B

Andrewrob

bullets wrote: »

If you can, drop it into an airsoft shop!
If you have bought it from an Irish retailer they will be more than willing to take
the gun back and rectify the situation since anything they sell should not be above 1j.

I opened my gear box on a JLS scar that was fireing over the limit to cut the spring, and surprisingly the spring was tougher than the snips that I used to try and cut it, and it actually broke my snips! Also could not get the gear box back together with the trigger spring intact, and when I reassembled the gun it jammed after one shot.
Hence my only SCAR in my collection is a collection of parts rather than a gun.

You could try drilling a tiny tiny hole in the nozzle or cylinder
to let some air leak and make the fps less. Although that could absoultly wreck the gun.


~B

Thanks for the reply . I think I will drop it into an airsoft shop as they will know what they are doing. I actually bought this off boards so thats why its over a joule! I have been told to avoid drilling holes in anything at any cost!!
cheers again,
Andrew

evilrobotshane

I looked this up recently and to do it properly is a mildly complicated procedure of heating, cutting, bending, filing, re-heating, plunging into cold water, re-heating again and letting cool. Far less effort to just buy a lower power spring, which is what I did.

Private Snafu

Don't cut the spring.... The sharp edge you'll inevitably leave will cause more wear inside the gearbox (or it'll catch something, the spring will twist and end up breaking).

As for drilling holes forget it, introducing an air leak to an aeg is just madness!

As others have said, don't cheap out, buy a new spring. Your FPS will drop and your ROF will also increase

Leftyflip

Cut and file, I've done this on countless guns, remember M85 or M90 springs, especially some of the Chionese brand ones, can sometimes be over the limit, and cutting it is needed. Just cut a few coils off and file the edge to a smooth end. Only spring I had break was a crappy Dboys one in my SCAR, but then again I didn't file it down properly, and the ROF was a bit silly...

Private Snafu

Leftyflip wrote: »

Cut and file, I've done this on countless guns, remember M85 or M90 springs, especially some of the Chionese brand ones, can sometimes be over the limit, and cutting it is needed. Just cut a few coils off and file the edge to a smooth end. Only spring I had break was a crappy Dboys one in my SCAR, but then again I didn't file it down properly, and the ROF was a bit silly...

I think we've all had to do it at some stage Lefty, but it's far from the ideal solution. I swear by Guarder springs (never had an issue with them) usually pull about 295-315 out of the SP90. For the sake of 10 quid it really isn't worth the risk of damaging other components (or tools ).

Leftyflip

Dunno what brand of snips I'm using, but they'll cut anything, I've even had to cut Guarders down, its just a case of the batches, I've seen some had been perfect and some a bit over.