I ordered the following from Tactical Lab, Lock and Load and TLP Bunker (Manila Shops):
TLP Bunker:
Metal Body with small parts
1-piece M4 metal hop-up
Stubby Metal Sling Adaptor
CA M4 air nozzle
Tactical Lab:
JG complete mech box (V2)
2 pieces P-Mags
Lock and Load:
Element G27 grip
Quad Ring
6mm metal bushings
I was supposed to order the mech box from an entrepreneur but had problems with shipping, luckily, the ever dependable Tactical Lab had stocks.
The mech box they gave me is one of the newer generations since it already has a better piston body (orange) and metal bushings.
I also got a 407mm, 6.02mm tight bore barrel from EdGI. It's made of brass but the inner finishing is quite superb.
Due to budget constraints, I haven't bought a motor for this project gun. I "borrowed" the TechPro Hi-torque motor from Kristine (my HK 416) together with her Stubby grip (the motor plate that I have couldn't fit properly on the Element G27 grip).
I bought a stubby stock from Triad here in CDO. The mech box that I got was "front configured" so I had to re-wire everything since my battery compartment would be at the stock. I also wired the Termi-MOSFET that I have lying around for quite some time, waiting to be used. I know a bit of Electronics and got my tools already so it wasn't much of a hassle to wire everything.
This is also the first time that I shimmed the gears. The gears are moving much freely now and there's not much wobble so I think I did a good job. I haven't placed the Quad Ring yet to maximize compression since the stock O-ring is still fine. I used a bit of teflon tape on the lube channel of the piston head so that only a little expansion from the O-ring is needed to provided an air seal.
I replaced the stock air nozzle with the new one and I'd be putting the former to a JG Beta Spetsnaz, a project gun for my girlfriend. Got everything assembled and ready to go. So, without further ado, here's "Kayla"

and here's a sample video of her