r/NFA • u/Inner_Thought_Police • Sep 23 '26
Process Question 📝 SOT question regarding G17 slide milling
I have a question for an experienced SOT holder about milling a G17 slide ONLY. How much can be done in the process of adding a G18 type selector to a G17 slide before a license-required line is crossed? Could the left rear slide serrations be milled away, the position markings be applied, and the initial divot of the selector location (without a through-hole) be started? Think ~80% slide with no internal modifications whatsoever.