: An illustrated, step-by-step guide by Rob Reaser that breaks down primary groups—upper receiver, lower receiver, and bolt carrier group—into detailed component assemblies.
: Authored by master gunsmith Patrick Sweeney , these volumes are considered the definitive industry standard. Gunsmithing - The AR-15
: An armorer’s wrench for castle nuts and barrel nuts, plus a high-quality torque wrench to ensure the barrel is seated within the required range of 30 to 80 foot-pounds. : An illustrated, step-by-step guide by Rob Reaser
For those looking to turn this interest into a career, organizations like the Sonoran Desert Institute or community colleges offering Basic Gunsmithing Skills Certificates provide formal pathways into the trade. : An illustrated