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Armorer Courses

Constellis armorer courses will qualify you to disassemble, service, inspect and re-assemble various weapons systems. Armorer training courses are a mixture of classroom instruction and hands-on exercises, enabling each student to achieve a high degree of familiarity with the topics covered.

Our M1911/M1911A1 and AR-15 Carbine courses are Mil-Spec and have been taught for OEM Manufacturers and the National Rifle Association for over 15 years.

Our Shotgun Armorer courses are the only factory-authorized Mossberg™ law enforcement-certified armorers courses available.

Graduates will be issued a three-year certification, be able to order parts directly from the factory and receive one-on-one factory phone support and Constellis phone and e-mail support.

RCO Ref WO 17311

Courses Offered

Learn more about our armorer courses by selecting a course option below, or view the Course Calendar to register.

Course Calendar

View and register for upcoming armorer courses.

January 2025
March 2025
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Armorer Course Descriptions

M1911A1 Handgun Armorer 

In this one-day M1911 Handgun Armorer course, students will acquire the basic armorer skills for this historic and popular firearm system. Students will discuss the history of this famous firearm then learn how to diagnose and repair malfunctions, perform function checks and return firearms to military specifications.

Topics

  • History of the M1911/M1911A1
  • Function of parts
  • Technical specifications
  • Clearance, loading and unloading procedures
  • Field stripping
  • Operating principles
  • Cycle of operation
  • Disassembling and assembling the firearm system
  • Troubleshooting
  • Cleaning, maintenance and lubrication
  • Practical exam

Gear

All firearms and armorer tools used in the course are provided by Constellis.

Prerequisites

Familiarity with 1911 platforms

Ammunition Requirements

None.

Mossberg Master Shotgun Armorer 

This two-day course covers both the Mossberg 500/590/590DA “pump action” and the Mossberg 930 “semi-auto” shotgun systems. The Mossberg Shotgun Armorer course provides instruction on how to diagnose and repair malfunctions, return shotguns to factory specifications, perform function inspections, check headspace and more.

This course is only offered at our Moyock, NC, Training Center.

Topics

  • Product information
  • Nomenclature
  • Specifications
  • Clearance procedure
  • Loading and unloading procedure
  • Cycle of Operation
  • Field stripping
  • Detailed armorer dis-assembly, assembly, and inspection
  • Cleaning and lubrication
  • Head-spacing
  • Proofing
  • Troubleshooting
  • Practical and written exam

Gear

All firearms and armorer tools used in the course will be provided by Constellis and Mossberg.

Prerequisites

Familiarity with Mossberg 500/590/930 shotgun platforms

Ammunition Requirements

None.

AR-15 / M-16 Carbine Armorer 

Our AR-15/M-16 armorer course in the premier armorer course in the United States and the benchmark certification for the industry. This two-day course is designed for professionals who seek the designation of AR-15/M-16 armorer. It covers the AR-15/M-16 platforms and provides instruction on how to diagnose and repair malfunctions, return firearms to military specifications, perform function inspections, check headspace and more.

Topics

  • History of the AR-15/M16 rifle
  • Function of the five major assemblies
  • Clearance, loading and unloading procedures
  • Field stripping the rifle
  • Function check
  • Gas operating system
  • Cycle of operation
  • Difference between semi-automatic and automatic parts
  • Legal barrel length with or without a permanent flash suppressor
  • Disassembling and assembling lower receiver group to include stock
  • Disassembling and assembling bolt carrier group
  • Disassembling and assembling upper receiver group
  • Bullet trajectory and battle sight zero
  • Headspacing
  • Barrel replacement
  • Cleaning, maintenance and lubrication

Gear

All firearms and armorer tools used in the course are provided by Constellis.

Prerequisites

Basic knowledge and familiarity of AR15/M16 platforms

Ammunition Requirements

None.

Mossberg 500/590 Armorer

This two-day course covers the Mossberg 500/590/590DA shotgun systems and provides instruction on how to diagnose and repair malfunctions, return shotguns to factory specifications, perform function inspections, check headspace and more. After completion of the course, students will be able to repair and maintain Mossberg 500 series shotguns to factory standards.

*If a Police Department or Agency is interested in hosting an Armorer in their location, email Train@Constellis.com*

Topics

  • Product information
  • Nomenclature
  • Specifications
  • Clearance procedure
  • Loading and unloading procedure
  • Cycle of Operation
  • Field stripping
  • Detailed armorer dis-assembly, assembly, and inspection
  • Cleaning and lubrication
  • Head-spacing
  • Proofing
  • Troubleshooting
  • Practical and written exam

Gear

All firearms and armorer tools used in the course will be provided by Constellis and Mossberg.

Prerequisites

Familiarity with Mossberg 500/590 shotgun platforms.

Ammunition Requirements

None.

Mossberg 930 Armorer

This one-day course covers the Mossberg 930 semi-automatic shotgun systems and provides instruction on how to diagnose and repair malfunctions, return shotguns to factory specifications, perform function inspections, check head space and more. After completion of the course, students will be able to repair and maintain Mossberg 930 series shotguns to factory standards.

Topics

  • Product Information
  • Nomenclature
  • Specifications
  • Clearance Procedure
  • Loading and Unloading Procedure
  • Principles of Operation
  • Field Strip
  • Detailed Armorer Dis-assembly and Assembly
  • Head-spacing
  • Ammunition
  • Cleaning and Lubrication
  • Practical exam

Gear

All firearms and armorer tools used in the course will be provided by Constellis and Mossberg.

Prerequisites

Familiarity with Mossberg 930 semi-automatic shotgun platform.

Ammunition Requirements

None.

Advanced AR-15 Armorer

The Constellis Advanced AR-15 Armorer course is a step above our premier AR-15 Armorer course. This one-day course is designed as an add-on to our two-day course with a focus on barrel replacement and troubleshooting common malfunctions. Each student will personally re-barrel both Mil-Spec and “Free Float” upper assemblies along with installation of “Low Profile” gas block assemblies. The course concludes with a practical troubleshooting exercise. After completing this course, students will be better able to repair and maintain the AR-15 platform to law enforcement and military specifications. After completing this course, students will be better able to repair and maintain the AR-15 platform to law enforcement and military specifications.

Topics

  • Introduction to the course
  • Clearance, loading and unloading procedures
  • Disassembly and reassembly refresher
  • Function check
  • “Mil-Spec” upper receiver assembly
  • “Free Float” upper receiver assembly
  • Gas block installation
  • Troubleshooting and remedies
  • Troubleshooting practical exercise

Gear

All firearms and armorer tools used in the course are provided by Constellis.

Prerequisites

Student must have completed our 2 day AR-15 course within the last 12 months.

Ammunition Requirements

None.