AR-15 Parts

Upgrade, repair, or customize your AR-15 with premium parts and components from Frontier Justice. From triggers and charging handles to stocks, handguards, buffer systems, and small parts, find everything you need to build a rifle that performs exactly the way you want it to.

 

The AR-15 platform has earned its reputation as America's most customizable rifle, allowing shooters to tailor nearly every component to fit their individual needs. Whether you're building a rifle from scratch, replacing worn parts, or upgrading your current setup, Frontier Justice carries a wide selection of AR-15 parts from trusted manufacturers.

Every component plays an important role in overall rifle performance. Precision triggers can improve accuracy and consistency, upgraded charging handles enhance manipulation, free-float handguards increase versatility, and adjustable stocks help shooters achieve a more comfortable fit. Small improvements throughout your rifle can create a noticeable difference on the range, in competition, or in defensive applications.

Our inventory includes AR-15 triggers, bolt carrier groups, charging handles, handguards, buffer components, receiver parts, lower parts kits, upper receiver components, stocks, grips, gas system parts, and more from respected brands such as Daniel Defense, Geissele, BCM, Aero Precision, Magpul, CMMG, Radian, Midwest Industries, and more.

Whether your goal is building a lightweight competition rifle, a dependable defensive carbine, a suppressed .300 Blackout pistol, or a precision long-range platform, choosing quality parts helps maximize reliability and performance.

From first-time builders to experienced armorers, Frontier Justice offers AR-15 parts and accessories designed to help you get the most from America's most popular rifle platform.