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MJ Gunsmithing in Wisconsin delivers precision custom rifle builds, barreling, Cerakote, and action work tailored for long-range shooters, hunters, and AR platform enthusiasts.


Located in Hubertus, Wisconsin, MJ Gunsmithing LLC is a full-service shop renowned for its precision-driven firearm builds and expert gunsmithing services. Their team specializes in custom bolt-action and AR-style rifles, offering ground-up builds designed for accuracy, reliability, and performance under the most demanding conditions. Services include barrel work, stock bedding, Cerakote finishes, and trigger tuning - all backed by machining expertise and component-level attention to detail.
Whether you're chasing sub-MOA consistency for PRS or optimizing your hunting rifle, MJ offers tailored solutions.
Services include:
With in-house capabilities ranging from 3D printing to full Cerakote ovens, MJ Gunsmithing blends traditional craftsmanship with modern tech.
Trusted by shooters across southeastern Wisconsin, they've built a reputation for performance-focused work that stands up to long-range demands.
Monday: Closed
Tuesday: 10AM – 6PM
Wednesday: 10AM – 6PM
Thursday: 10AM – 6PM
Friday: 10AM – 6PM
Saturday: 10AM – 3PM
Sunday: Closed