A friend was showing me his Glock 21 that he just got back from having the slide milled for an Aimpoint Acro P2. He wasn’t sure if the milling was done correctly or not. Was hoping someone here might know or have a slide to compare if this optic cut looks the same?
From behind the gun it’s the area on the right side of the optic cut that’s between the raised platforms and the slide serrations that is in question.