Aero Precision AR15 Carbine H2 Buffer Kit

Aero Precision AR15 Carbine H2 Buffer Kit

The Aero Precision AR15 Carbine H2 Buffer Kit provides the core components needed to complete a carbine-length AR-15 buffer system while adding the extra mass of an H2 buffer. Built around a 6-position mil-spec receiver extension machined from 7075-T6 aluminum, this kit is a solid choice for a new build, rebuild, or rifle that would benefit from a heavier carbine buffer.

The included 4.65 oz H2 buffer adds reciprocating mass compared with a standard carbine buffer. In properly configured rifles, the added weight can help moderate bolt carrier speed and smooth cycling, making the H2 a popular option for suppressed rifles, shorter gas systems, or other AR-15 setups that may run more aggressively.

7075-T6 Mil-Spec Receiver Extension

Aero Precision machines the included 6-position carbine receiver extension from 7075-T6 aluminum, providing the strength and dimensional consistency expected from a quality AR-15 buffer tube. Its mil-spec diameter is compatible with adjustable stocks designed for mil-spec carbine receiver extensions.

H2 Buffer for Carbine-Length AR-15 Systems

At approximately 4.65 oz, the H2 buffer offers a practical step up in weight from a standard carbine buffer without moving to an excessively heavy configuration. Buffer weight should always be matched to the rifle’s gas system, ammunition, and operating characteristics to maintain reliable cycling.

Features

• H2 Carbine Buffer: Approximately 4.65 oz for increased reciprocating mass.
• 7075-T6 Aluminum Receiver Extension: Durable construction for AR-15 carbine buffer systems.
• 6-Position Mil-Spec Buffer Tube: Compatible with adjustable stocks designed for mil-spec receiver extensions.
• Carbine Buffer Spring: Included for a complete carbine-length buffer assembly.
• Installation Hardware Included: Comes with the receiver end plate and castle nut.
• Made in the USA: Manufactured by Aero Precision.

Kit Includes

• 6-position mil-spec 7075-T6 carbine buffer tube
• H2 carbine buffer
• Carbine buffer spring
• Receiver end plate
• Castle nut

Stock not included.