A Grayguns® Authorized Upgrade Center


Kuper Precision is a Grayguns Authorized Upgrade Center. Local, fast turn-around for installation and tuning.

Kuper custom rifle build

Custom Sport Rifle Builds

We’ll create and custom fit a modern sport rifles to meet your requirements. LEO, hunting, competition or self-defense.

Custom 1911 Builds

Distinct task-orientated weapons that combine form with function for professionals, hunters, and competitors.

Custom Gunsmith Services

Jacksonville, Florida

P320 Competition Trigger

Grayguns Authorized Upgrade Center

Kuper Precision is fully authorized to install all Grayguns trigger systems and accessories for your SIG Sauer® and Heckler & Koch® pistols. Kit installations can be scheduled in advance, and installed while you wait.

Modern Sport Rifle Builds

Kuper Precision has extensive experience building out rifles based on the AR platform. Whether you’re looking for an AR pattern rifle for hunting, sport shooting, law enforcement patrol or self defense, Kuper Precision has you covered.

Custom 1911 Builds

We got our start building custom 1911 builds and continue this work today. If you’re looking for upgrades, custom builds, checkering work or trigger fine-tuning to your specifications, contact us today.

About Cooper White

Security Background

During an extensive career in law enforcement, Cooper has gained extensive experience working with and customizing firearms. He’s honed his gunsmithing skills with various mentors including Bruce Gray, the founder and president of Grayguns Inc.

Along with gunsmithing and law enforcement experience, Cooper has been recognized in a variety of disciplines including:

  • Homeland Security
  • Security Operations
  • Emergency Management
  • Counterterrorism
  • Security and Firearms Training
  • Risk Assessments
  • Security Management
  • Executive Protection

Previous Employers

  • Private Investigation, Recovery, and Security Advisory Council, Florida Department of Agriculture and Consumer Services (FDACS) – Council Member
  • Jacksonville Port Authority – Facility Security Officer
  • Florida State College at Jacksonville – Firearms Instructor
  • Jacksonville Sheriff Office – Patrolman

Get in touch

If you have questions or would like to get in contact with Cooper White, complete the contact form below.

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