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Discussion Starter · #1 ·
I'm looking at getting a spring that'll shoot under 450 fps for my type 96.

Obviously I don't want it shooting much lower than, say, 425 fps because I need to be able to use at least .3's with it without any problems.

Anyway, I can't find a laylax sp130 on any sites so I'll probably just go with a systema or guarder M130. Does anyone foresee any problems installing one of these (I have both a 7 and 9mm spring guide, so that's good to go) in a bolty (L96)?

Also, I can't have it shooting hotter than 450 fps because then I'd have to roll with a spotter and larger engagement distance. The main reason I'm doing this is to be able to run solo at public events and to have a shorter engagement distance (obviously I don't need to be below 400 fps for the 10 ft engagement...
).

I'm running a 6.03 prommy and it seems like a sp130 shoots 430 fps with a stock barrel (~6.08). Do you think this will stay below the limit or should I just go for an M120? I'm a bit short on cash or I'd just buy both and have an extra to tinker with.

Thanks :) Haven't had a question for a while, but saving money is always an incentive to get some opinions ;)
 

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Just so you know I only get 380 out of my 120 spring, but if you refer to the last part of my super vsr thread and look at the spacers and make something similar you can get dam near 450. One thing to be aware of is becoming spring bound, which means the coils are all locked together before the piston cocks, the remedy to this is to use a slightly shorter spacer ;)
 

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The advantage to the spring spacers is that you cant cut to much off, like you can with spring clipping. You have the advantage that when you test and find it a bit to high, or low, you can fit a spacer that is 1/16th smaller/bigger and fine tune your fps to be as near to what you want, as is humanly possible ;) with clipping you will find this to be a much more hit 'n' miss affair that is non returnable if you take it to far, and you then cant space it to return it as the cut will either slip off the spacer or if you fit it the other way round, into the piston, it will gouge holes in the back of your cylinder head. Both are not good. I use spacers all the time to get a standard spring up to 350 fps so I know they work and are effective, plus they are a darn site cheaper to replace than a spring when/should you fuck it up ;)
 

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It works along your the lines of your first theory, Basicaly the spring is held under higher tension right from the start increasing its static pressure. So when its asked to perform its usual function it starts and finishes its stroke with more compressive power :)
 

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Discussion Starter · #7 ·
Would there be any problems installing an AEG spring in a L96 cylinder? Such as cylinder length being too long for the spring?

Otherwise I think I'm good to go, I've got one offered for $10 shipped.
 

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Discussion Starter · #11 ·
It arrived today, I'd guess it's shooting high 300s, I'll get spacers at ace tomorrow and bring them to the game saturday...I'll figure out what chronoes at around 445. The nice thing about knowing your rifle is it doesn't take long to zero it after an upgrade (switched to .3s and a new spring and it took me 10 minutes to zero @ 150ft) :)

Thanks for the help.
 
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