Embed is correct. First Factory is Laylax. And if Laylax is Prometheus then they are all the same.Embed said:Laylax is a subsidiary of Prometheus if that helps at all. I have some Laylax parts in my M24 and they're just dandy. Well-built and reliable. I see Laylax and PDI on a similar plane in terms of quality. Both would be a worthy option when it comes to choosing an upgrade. I gave up searching for specific M24 upgrades so I switched my entire internal assembly into upgraded PDI and Laylax APS parts.
I'm pretty sure First Factory is also part of the Prometheus/Laylax company because on the box of my Laylax cylinder it says "First Factory" in the corner.
As PDI and Laylax, it depends on parts. I beleive Laylax is better internals when it comes to cylinders and their internals.
I think PDI is great for everything else. Hopup, Inner-barrels, Externals, and the one thing I may say for cylinders would be Springs.