: Beginners must be aware of ATF definitions, such as the "26-inch rule" (overall length) and the minimum 16-inch barrel length requirement for rifles.
: Local laws regarding AR-15 ownership and assembly vary significantly; always research regional regulations before beginning a build. Gunsmithing - The AR-15
: Focuses on basic maintenance, repair, and accessorizing. : Beginners must be aware of ATF definitions,
: 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. and accessorizing. : An illustrated
To perform professional-level work, specific tools are non-negotiable:
: Snap ring pliers for delta ring assembly and anti-seize compound for lubricating receiver threads. Critical Technical Procedures