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I have only closely inspected and opened up one of these gearboxes.
Here are my impressions:
The frames are casted metal frames.
They entire gearbox isthe same as what you can assemble yourself with individual Systema parts for sale, ut buying it as this package is just easier and it saves a couple of dollars.
The SYSTEMA logo stamped and painted on the side of the mechbox is a classy touch
When I opened up the gearbox, I noticed the gears were lubricated with Systema gear grease.
The cylinder and piston head were lightly lubricated with Systema cylinder grease.
However, the rails on the piston and the piston guides on the mechbox were not lubricated at all. It was dry as far as I could tell. I added some Tamiya ceramic grease and moved on to the next area of inspection.
Other than that, all of my impressions of Systema products are in fairly high regards. They have a higher QC than many other brands.
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