Bearing spring guide + bearing cylinder head = repetitive?

[dpvu]

I have a JG HK416 and it has a Modify bearing cylinder head installed. I'm wondering if it's really worth it to also install a bearing spring guide. It has the stock JG spring guide which is a solid chunk of metal so I'm not worried about that breaking anytime soon. It's got a Madbull M120 spring (pretty much equivalent to the stock spring).

[Gigaknight]

FYI, it's a bearing piston head, not cylinder. Personally I prefer to have a bearing piston head just to be "safe", it puts less stress on the spring to have bearings.

I think you might get a small increase on fps as well, might not be too noticeable though.

[Styrak]

If you have one side of the spring with a bearing, it's not really necessary to do it with the other side. But it can be done if you want.

[dpvu]

Thanks guys. I figured it wouldn't really be necessary and thanks for the correction Gigaknight... it's a bit late. I'm not looking for an increase in FPS or anything like that as an M120 puts out plenty of power.

[Skladfin]

if it aint broken dont fix it.

you wont see much, if any improvements

[Amos]

On the contrary, when a spring compresses it rotates... If both points rotate (one against a polymer piston instead of on a bearing) it could eventually create a wear-pattern and weaken the piston.

It wouldn't hurt to be safer and go with both sides on bearings to allow the spring to freely rotate.

[ThunderCactus]

It's already freely rotating on the bearing in the piston, therefore it's not rotating on the spring guide.
Adding a bearing on the spring guide will just add FPS.

[Kos-Mos]

...because the pre-load on the spring will be higher.

And in some cases, can cause a jam. (seen it!)