Matrix CNC Aluminum Ver 3 Airsoft AEG Gearbox Ball Bearing Vortex Spring Guide (AK, G36)

"The Good: Fits perfectly in my JG G36(DMR Version) Version 3 gearbox. It's SUPER sturdy, and I have no idea what the ball bearings do. Currently paired with a M140 spring.

The Bad: None

The Ugly: I wish mine came in Red or Blue :(

"Decent spring guide, good construction. I found it can be a little snug if your trying to fit it into MP5k so you may have to get a slightly less powerful spring, or do some reductions on your current one (Although I wouldn't recommend doing so!)

All in all, a good addition to any V3 gearbox, without a ridiculous price tag.

"using with a sp130 works good and good price, nice bearing, no just wish it was a little stronger metal then aluminum but it works it will probably never break unless you have like a sp200 or something outragous