The Strike Industries AR Flat Wire Spring (part no. ARFWSP) is an economical, do-it-yourself upgrade for any AR system running a pistol-length buffer system. Strike Industries engineers the spring with a flat wire cross-section instead of the traditional round wire, letting it store more energy in the same compressed space. That translates directly into increased bolt power and more consistent cycling, especially useful on shorter pistol-length systems where spring travel is already limited.

Key Specifications

• Sized specifically for a pistol-length buffer system.
• Uses a flat wire design instead of traditional round wire.
• Packs more energy into the same space for increased bolt power.
• An economical, do-it-yourself upgrade for any compatible AR system.
• Compact coil geometry suits the shorter buffer travel of pistol-length systems.

Frequently Asked Questions

What buffer system does this spring fit? A pistol-length buffer system.

How is a flat wire spring different from a round wire spring? It stores more energy in the same compressed length, increasing bolt power.

Is this a difficult upgrade to install? No, it’s designed as a simple, do-it-yourself swap.

Buy the Strike Industries AR Flat Wire Spring

A pistol-length system runs short on spring travel to begin with, and a flat wire spring is one of the cheapest ways to claw back reliable cycling. Order it from our Lubbock, Texas gun shop for fast shipping, along with more AR buffer system parts.