Declan Mercer
I spent three years as a precision armorer for a tactical training school in northern Arizona, regularly maintaining over 200 weapons under harsh conditions. Now I advise purchasers directly through Firearms Online, drawing on that hands-on maintenance backlog. My approach is rooted in reliability over trends — a rifle that functions during a week-long hunt matters more than a catalog photo.
Areas of focus
- AR-15 platform selection and break-in
- polymer-frame pistol maintenance schedules
- subsonic ammunition testing for suppressors
- bolt-action rifle bedding for thermal stability
- red dot sight mounting and zero retention
- rimfire training system setups for new shooters