Choosing an AR-15 rifle starts with identifying the intended use, caliber, barrel length, gas system, handguard style, stock configuration, overall weight, optics setup, and the level of modularity or accessory compatibility desired.

Choosing an AR-15 Configuration

• 5.56 NATO / .223 Remington: One of the most common AR-15 configurations, widely used for range shooting, training, competition, recreational shooting, varmint hunting, and general-purpose applications.
• .300 Blackout: A popular AR-platform chambering that offers different ballistic characteristics and supports a range of hunting, sporting, defensive, and specialized applications.
• Optics-Ready Rifles: Typically feature a flat-top upper receiver and free-float or accessory-ready handguard for mounting red dots, scopes, magnifiers, lights, and other compatible accessories.
• Modern Sporting Rifles: AR-15 pattern rifles are highly modular, allowing many components such as stocks, grips, handguards, triggers, sights, optics, and other accessories to be configured around the shooter and intended application.

Barrel Length, Handguards and Features

Barrel length, profile, twist rate, gas system, muzzle device, handguard length, stock configuration, trigger, sights, and overall rifle weight can all influence handling and performance. Consider how the rifle will be used before comparing individual configurations and features.

Buying AR-15 Rifles Online

AR-15 rifles purchased online are generally shipped to an eligible Federal Firearms Licensee for required transfer procedures. Review our guide to buying firearms online or see our FFL transfer information for additional details.