Precision Defense 7075 H3 AR-15 Carbine Buffer - 5.2oz

Running a suppressed .300 Blackout or a 9mm carbine means your buffer needs to keep up — the Precision Defense 7075 H3 Carbine Buffer delivers a heavy 5.2 oz. weight specifically tuned to tame the elevated gas pressure these builds generate.

The Precision Defense H3 is a heavy carbine buffer weighing 5.2 oz., designed for AR-15 carbine buffer tubes and built to provide the increased dwell time and recoil reduction needed in suppressed, pistol-length gas system, and direct blowback 9mm carbine configurations.

Running a heavier buffer isn't just about felt recoil — it's about reliability in builds that push more gas through the system than a standard carbine buffer was designed to handle:

Matched for suppressed .300 Blackout and 9mm builds: Suppressors and direct blowback systems dramatically increase bolt carrier velocity by raising backpressure. The H3's 5.2 oz. weight slows the bolt carrier's rearward travel, improving extraction timing and preventing the short-stroking or over-cycling that a standard carbine buffer can't correct in these applications.

7075 aluminum body construction: The 7075 aluminum body delivers a high strength-to-weight ratio, keeping the buffer durable and dimensionally stable through sustained use without adding unnecessary mass beyond the intended 5.2 oz. tuned weight.

• Type: H3 Carbine Buffer
• Weight: 5.2 oz.
• Body Material: 7075 aluminum
• Compatible Buffer Tube: Carbine length
• Ideal Applications: Suppressed .300 Blackout, 9mm carbine, pistol-length gas systems, direct blowback builds

Compatible with standard carbine length buffer tubes on AR-15 platforms. Recommended for suppressed .300 Blackout builds, 9mm AR-pattern carbines with direct blowback systems, and any AR-15 with a pistol-length gas system generating elevated backpressure.

The 7075 aluminum body provides durable, corrosion-resistant construction engineered to maintain consistent weight and dimensions through high-volume use in demanding suppressed and blowback-operated configurations.

An ideal upgrade for builders running suppressed .300 Blackout uppers, 9mm PCC carbines, or any AR-15 build experiencing over-cycling, bolt bounce, or reliability issues with a standard carbine buffer weight.

Precision Defense delivers purpose-built AR-15 components engineered for reliable performance in demanding configurations. The H3 Carbine Buffer is backed by Precision Defense's standard manufacturer warranty.