AR-15 Mil-Spec Carbine Length Buffer Spring

Maintain smooth, reliable cycling and consistent ejection in your rifle with the AR-15 Carbine Length Buffer Spring. Engineered to strict military specification standards, this action spring delivers the precise tension and smooth compression required for optimal bolt carrier group return and recoil management.

Constructed from high-tensile solid steel, this 10.75-inch carbine spring is built to resist fatigue, set, and binding through heavy firing schedules. Weighing in at 1.9 oz, it provides balanced resistance for standard carbine buffer setups across standard 5.56 NATO, .223 Remington, .300 Blackout, and pistol caliber carbine builds.

Treated with a durable, corrosion-resistant matte black finish, this spring resists rust, reduces friction noise inside the receiver extension, and ensures long-lasting operational lifespan in harsh field conditions.

Key Features & Specifications:

• Solid Steel Build: Constructed from high-strength steel alloy for long fatigue life and reliable tension retention.
• Corrosion Resistant: Matte black finish protects against moisture, rust, and internal buffer tube wear.
• Standard Carbine Specs: Measures 10.75 inches in length and weighs 1.9 oz for standard recoil system tuning.
• Smooth Operation: Smooth surface reduces spring vibration and rasping noise inside the receiver extension tube.
• Universal Fitment: Compatible with all standard Mil-Spec and commercial AR-15 carbine length buffer tubes.