SPECNA ARMS sa10, m4

[awrightdude]

CAN ANYONE RECOMMEND A COMPATIBLE SPRING FOR MY SA10? I've tried Patrol base similar sites and  and all I get are suggestions for different makes OR spring powered sniper rifles! As I'm new to working on the internals I want to get it right. I hastily bought an m100 spring from eBay but it's massive and it didn't mention if it was compatible! 

 

[Quagmire]

I have the SA-E01, and have never had any issue with XT springs from ak2m4.co.uk, give those a try.

 

[Rogerborg]

Agreed, this will be fine: https://www.ak2m4.co.uk/internal-parts/springs/xt-aeg-spring-m100

It looks like you've got a 150mm barrel, so while you can probably get up to 1.1J, you might need to go a little hotter to get there. Do you have a chronograph?  If so, you could try an M105 or even M110, then cut a coil or two, or just heat-and-squish them, in order to fine tune it down.  If not, an XT M100 should be fine, you're always better coming out a little under than over.

 

[Lozart]

CAN ANYONE RECOMMEND A COMPATIBLE SPRING FOR MY SA10? I've tried Patrol base similar sites and  and all I get are suggestions for different makes OR spring powered sniper rifles! As I'm new to working on the internals I want to get it right. I hastily bought an m100 spring from eBay but it's massive and it didn't mention if it was compatible! 

Click to shrink...

Why do you say it's massive? If it's longer than the original spring, that's not unusual! Aftermarket springs are quite often longer than the original ones - this is not a problem.

 

[Rogerborg]

Oh, sorry, yes, I blanked on that.  If you've bought an AEG spring, and it's the same diameter as the stock spring, sling it in and you should be good.  Longer springs can reduce twanginess.

Do you have the link to the eBay listing?