Enhanced AR 15 Buffer Spring

The Enhanced AR 15 Buffer Spring from Rare Breed Triggers is designed to improve cycling reliability and reduce recoil, making it a critical upgrade for AR platforms running high rates of fire or specialized triggers like the FRT-15.

What you get

• Improved durability for extended service life
• Enhanced performance with smoother cycling and reduced recoil
• Better tuning compatibility with heavier buffers (e.g., H3)
• Optimized for both suppressed and unsuppressed configurations

Build and finish

Constructed in the U.S.A., this buffer spring is manufactured to Rare Breed Triggers’ exacting standards. The spring is made from high-quality steel, heat-treated for consistent performance and resistance to fatigue. Precision machining ensures tight tolerances, allowing it to function seamlessly in a variety of AR setups.

The finish is designed to minimize friction and wear, ensuring smooth operation even under high-cycle conditions. Whether you’re running a standard carbine or a specialized setup with a forced reset trigger, this spring is built to handle the demands of rapid fire and extended use.

Compatible platforms

• AR-15 rifles and carbines
• AR-10 platforms (with compatible buffer tubes)
• Builds using Rare Breed Triggers’ FRT-15
• Suppressed and unsuppressed configurations

Installation notes

Installing the Enhanced AR 15 Buffer Spring is straightforward. Remove the existing buffer spring from your buffer tube, replace it with this unit, and reassemble your lower receiver. No specialized tools are required, though it pairs best with heavier buffers for optimized performance.

For those building or upgrading Polymer80 frames and modular pistol setups, this buffer spring complements your project by ensuring reliable cycling and smoother operation. Whether you’re fine-tuning a precision build or optimizing a high-performance rifle, this spring delivers the durability and performance you need.