Google AI ModeSep 20, 2026
Custom milling voids the slide portion of the factory warranty (though reputable shops like Wage Milling, Jagerwerks, or Primary Machine stand by their work)
Data as of Oct 20, 2026Based on 1,756 AI responses
Reviewed by Dimitry Apollonsky
Primary Machine is a firearms customization shop that specializes in milling pistol slides, optic mounting, and Cerakote finishes, offering aftermarket components for CZ, S&W M&P, HK, and Glock platforms. They provide services such as optic milling, DPP conversion, Harbinger milling, RMR-to-ACRO adapters, and Cerakote, along with selling slides, parts, and accessories. Based in Morgan City, Louisiana, they operate an online store and knowledge center for orders, warranty, and dealer programs.
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Concealed Carry PistolsMentioned in
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Question: What should I look for when choosing between a factory optics-ready pistol and having a slide milled?
Google AI ModeSep 4, 2026
Custom milling requires you to strip your slide, ship it out to a machinist (like Jagerwerks, Wage Machine Works, or Primary Machine)