Simple MilSpec AR-15 Trigger Job and Improvement

DISCLAIMER:
I am in no way encouraging or advising anyone viewing this video to attempt to modify their firearms. I am NOT a professional gunsmith! If you are not 100% confident in your ability to modify firearm components, DO NOT even attempt it! One small change in angle to the face of a sear or hammer can result in a completely unsafe firearm! Always seek a professional gunsmith if there is any doubt!

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I wanted to see what improvement could be made on a $30 AR-STONER MilSpec AR-15 trigger with some simple polishing. The results surprised me! The action is super smooth and the weight dropped quite a bit. It might break in and feel similar after a few hundred rounds, but this was a quick way to expedite the process.

00:00 Intro
01:14 How the trigger works
02:00 Pre-polish action and weight
03:12 What will be polished
04:01 Tools used
04:30 Showing polished parts
05:20 Post-Polish trigger action and weight

3D printed trigger jig STL link:
https://www.thingiverse.com/thing:143...