AR15/M4 Armorers Course

Our AR-15/M-16 armorer course in the premier armorer course in the United States and the benchmark certification for the industry. This one-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 will be provided by Constellis.
Prerequisites
Basic knowledge and familiarity of AR15/M16 platforms
Ammunition Requirements
None.

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Date

Oct 08 - 09 2025

Time

12:30 pm - 9:00 pm

Location

585 East Pleasant St. Amherst MA 01003

Organizer

Sgt Allen Silva, UMass Amherst Police Department
Email
asilva@umass.edu
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