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AR-15 H3 Heavy Buffer (5.5 oz) – Solid Body Carbine Buffer

$16.99
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SKU:
H3B
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AR-15 H3 Heavy Buffer (5.5 oz) – Solid Body Carbine Buffer

 

Increase reliability and improve recoil control with this AR-15 H3 Heavy Buffer. Featuring a solid-body design and a true 5.5-ounce weight, this heavy buffer is engineered to slow bolt carrier velocity, reduce felt recoil, and optimize cycling in over-gassed, suppressed, and short-barreled rifle configurations.

Key Features

✓ True H3 heavy buffer weight – 5.5 oz

✓ Solid-body construction

✓ Fixed internal mass design

✓ No individual moving buffer weights

✓ Designed for AR-15 carbine buffer systems

✓ Helps reduce bolt carrier velocity

✓ Improves cycling in over-gassed rifles

✓ Ideal for suppressed firearm setups

✓ Precision-machined construction

✓ Drop-in installation

Product Overview

The AR-15 H3 Heavy Buffer is designed for shooters seeking improved recoil management and enhanced reliability in demanding rifle configurations. Unlike traditional dead-blow buffers that utilize multiple internal weights that shift during operation, this buffer features a solid-body design with a fixed internal mass.

The increased reciprocating weight helps slow bolt carrier movement, reducing excessive cycling speeds commonly encountered in over-gassed carbines, short-barreled rifles, and suppressed platforms. The result is a smoother recoil impulse, reduced wear on internal components, and improved feeding and extraction reliability.

Designed as a direct replacement for standard carbine buffers, the H3 Heavy Buffer installs easily into most AR-15 carbine receiver extension systems without modification.

Specifications

Specification Value
Product Type H3 Heavy Buffer
Platform AR-15
Buffer Weight 5.5 oz
Buffer Style Solid Body
Internal Design Fixed Mass
Buffer Length Carbine
Compatibility AR-15 Carbine Receiver Extensions
Installation Drop-In Replacement
Intended Use Heavy Buffer Applications
Construction Precision Machined Components
Color Black
Country of Origin USA

Why Choose a Solid-Body Buffer?

Fixed-Mass Design

Unlike traditional dead-blow buffers that contain multiple moving weights, this buffer utilizes a solid-body design with a fixed internal mass.

Consistent Cycling Characteristics

The non-moving internal design provides a consistent operating weight throughout the firing cycle.

Durable Construction

With fewer internal moving components, the solid-body design offers a simple and robust solution for shooters seeking a heavy buffer configuration.

Ideal for Over-Gassed Rifles

The H3 weight is commonly selected for carbines that benefit from increased reciprocating mass, including many suppressed and short-barreled configurations.

FAQ's

What makes this different from a standard H3 buffer?

Many traditional H3 buffers achieve their weight using multiple internal steel and tungsten weights. This model utilizes a solid-body, fixed-mass design rather than a dead-blow weight system.

What is the internal material?

The buffer uses a fixed internal mass to achieve its 5.5-ounce operating weight. The specific filler material is not specified.

Is this a dead-blow buffer?

No. This buffer does not utilize the traditional dead-blow design that relies on multiple internal moving weights.

 

 

3 Reviews Hide Reviews Show Reviews

  • 5
    Fantastic

    Posted by Mike on May 7th 2026

    Worked flawlessly.

  • 4
    H3 buffer

    Posted by Onepoint on May 3rd 2026

    Nicely made buffer, milspec size, but solid not a sliding weight dead blow type.

  • 4
    Makes my super safety run properly

    Posted by Unknown on Jan 22nd 2026

    Must have for a super safety.