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Knights Armament 2H Buffer

Best price

$111.49at AR15Discounts

checked Nov 10, 2026

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AR15Discounts Best price $111.49checked Nov 10, 2026 Check store Buy at AR15Discounts
Dirty Bird $111.49checked Nov 10, 2026 Check store Buy at Dirty Bird

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Price history

Dashed line = out of stock. Tracking since Oct 28, 2026.

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AR15Discounts$111.49$111.49$111.49
Dirty Bird$111.49$111.49$111.49

Since Oct 28, 2026.

About this part

The Knights Armament 2H Buffer is an AR-15 buffer part from Knights Armament. It's sold by 2 stores, all at $111.49.

Specifications

Manufacturer
Knights Armament
Type
Buffer
Platform
AR-15

From the manufacturer

Enhance your AR-15's performance with the Knights Armament 2H Buffer, a precision-engineered heavy carbine buffer designed for reliability in demanding conditions. As a trusted component from Knight's Armament Company, this 4.5 oz buffer delivers smoother cycling and reduced recoil, making it the ideal upgrade for shooters seeking optimal control during rapid fire or suppressed shooting. Key Features Heavyweight Design: At 4.5 oz, the 2H buffer provides increased mass to slow bolt carrier velocity, minimizing wear on internal components and improving overall longevity. Black Anodized Finish: Corrosion-resistant coating ensures durability in harsh environments, perfect for tactical applications. Precision Construction: Built to mil-spec standards, compatible with SR-15, SR-16, and SR-25 platforms, as well as standard AR-15 carbine buffer tubes. Enhanced Recoil Management: Absorbs and disperses recoil energy, reducing felt kickback and muzzle rise for faster follow-up shots. Specifications Weight: 4.5 oz Length: 3.25 inches Width: 0.93 inches Height: 0.93 inches Material: High-strength aluminum with tungsten weights Part Number: 21057 Why Choose the Knights Armament 2H Buffer? Struggling with excessive recoil or inconsistent cycling in your carbine-length gas system? The Knights Armament 2H Buffer addresses these pain points head-on by optimizing dwell time and bolt speed, leading to fewer malfunctions and a more enjoyable shooting experience. Ideal for 14.5-inch to 16-inch barrels, it excels in mid-length and carbine setups, whether running suppressed or unsuppressed. Shooters appreciate its role in extending the life of their firearms while maintaining the legendary KAC quality that professionals rely on. Don't settle for standard buffers that compromise performance-equip your build with the Knights Armament 2H Buffer today and feel the difference in every round fired. Upgrade now for superior reliability and control. Frequently Asked Questions What makes the 2H buffer different from a standard carbine buffer? The 2H buffer is heavier at 4.5 oz compared to the standard 3 oz carbine buffer, which helps reduce bolt carrier speed and recoil impulse for better control and reduced component stress. Is the Knights Armament 2H Buffer compatible with my AR-15? Yes, it fits standard mil-spec AR-15 carbine buffer tubes and is particularly suited for Knight's Armament SR-series rifles, ensuring seamless integration. Does this buffer work well with suppressors? Absolutely-its added weight softens the increased backpressure from suppressors, promoting smoother operation and less wear on your system.

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$111.49 at AR15Discounts
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