2a Bldr Series Ar15 Sprng/detent Kit

The 2A Armament Builder Series AR-15 Spring and Detent Kit is a precision component set engineered to ensure reliable function and consistent performance in AR-15 platform rifles. This kit consolidates the small but critical springs and detents required for bolt carrier group and trigger assembly operation, addressing a common pain point for builders: sourcing individual components that meet tight tolerance specifications. 2A Armament's manufacturing process delivers parts that function flawlessly across thousands of rounds of duty, training, and competitive use.

Each component in this kit is manufactured to precise specifications that directly impact reliability and safety. Springs must maintain consistent force across variable temperatures and firing cycles; detents must hold components in correct orientation without binding or play. The compact dimensions (3 x 1 x 4 inches) and minimal weight (0.06 lbs) reflect the kit's focused design—it contains no excess material, only what's necessary for function. This approach to component manufacturing distinguishes 2A from suppliers offering generic aftermarket parts without verified performance testing.

This kit serves AR-15 builders who demand verified quality during assembly or maintenance. Whether building a first rifle, upgrading an existing platform, or performing preventive maintenance on duty weapons, having matched springs and detents from a single trusted source eliminates guesswork and compatibility risk. Operators, armorers, and serious shooters rely on component-level reliability because failures at the spring or detent level can disable an otherwise capable rifle. The 2A Builder Series approach—precision manufacturing and durable construction—ensures the finished rifle performs as designed without premature wear or malfunction.