Polishing is a big help when removing small burr marks left over from the casting process. A smooth surface is a surface with less contact and can lead to less friction.

Great break down. I see a noticeable improvement when polishing piston rails and cylinders. For barrels I end up using EDGI steel barrels since nothing can beat them.

Polishing Tumbler with crushed up walnuts > hours of work with a dremel

Where is the polishing in the video I cant find it

Your key frames on the logo seemed a little... off.

Yup I love everything to be shiny. The sight of polished siegetec gears in a polished cnc gearbox is so sexy... But I think it's more removing resistance to lessen wear, rather than a real 'performance' upgrade. Anything that moves or makes friction in the gearbox should be filed/polished and properly lubricated for best reliability

I appreciate the detailed breakdowns, I am new to Live Airsoft, and finally have the bandwidth. I'm building a fleet of G&G SR M4's, 1's build to order and others for loaning. Outside basic, Inside complete overhaul and tuning. My goal is great all around functionality. and DFW is booming for the sport, lots of room.

I polish these parts for these reason! Most odd one, the copper plates on selector plates. When using them with titans, I have found that a shinier surface helps with reflecting the light (duhh) but this makes selector calibration more accurate. Piston tracks for a smoother feeling gearbox and almost negligibly lower amp draw Tappet tracks if necessary in order allow the Tappet plate to slide in a manner which is most buttery 🧐🎩 Bushings and axels for the reasons you stated Flat surfaces such as the top of bevel gears if it so happens to not require shims. In this case since the surface of the gear will rub on the bearing or bushing, I find it necessary to make that surface as smooth as possible to reduce wear, noise and amp draw. Cylinder if it appears that said cylinder is not offering air seal correctly. I have found that for Lonex/ ASG cylinders polishing reduces air seal. I also believe that a non polished finish inside a cylinder helps to retain the silicone oil grease. However, I have seen great results with polished cylinders. Using a drill press with polishing wheel also speeds up the polishing process drastically in comparison to a dremel.

You should teach us How to do It! Show us you doin It!!! Great content 👏🏻

hi mate, when are you going to make a video Shiming the gearbox of your vector??? there are 9999x videos of m4, but 0 of vectors gearbox. Ty so much

amazing video, could you share some links to polish paste that you think is good?

What about the cilinder head nozzle since its so try and error when you try to get a perfect Seal in nozzle to cilinder head I find the polished cilinder head nozzle to have a better seal

Polishing your cylinder would have negative effect! the O-ring of the piston head wil "clean" all the lubricant that it can carry and in short time it will start to wear out the O-ring of the piston head. Just the same as the engine cylinder honing :)

Question, I purchased an aftermarket stainless steel barrel with an r hop patch that is superglued in place. Would you recommend removing the patch to polish the inner barrel or polish with the patch still glued in place?

Certain parts definitely gain from polishing 100%

nobody asked me but i sandblasted my ics gearbox for no reason.

The self-censorship is real...

Dude totally respects your videos but stop talking so much, show us how to do it 🙋