2026 Suppressor Testing Series: Performance Data & Best Suppressor Benchmarks

Suppressor Testing Methodology

There are a significant number of variables that can affect performance—including the host rifle platform, weather conditions, and ammunition choice. Our testing is performed with the goal of showing how these suppressors perform relative to one another under identical or near-identical conditions.

The Baseline (Benchmark)

Each testing day begins by tuning the host rifle to function unsuppressed. We define "Function" as a consistent last-shot bolt hold open (LSBHO) using a magazine with a single round loaded. This represents the lowest gas setting required to fully cycle the rifle, reducing felt recoil and excess gas blowback to the shooter. This is our Benchmark.

The Suppressed Test

Once the baseline is set, the test suppressor is installed. We then re-tune the adjustable gas block to the lowest possible setting that still produces a last-shot bolt hold open. By comparing this to our Benchmark, we can measure the exact change in system pressure and bolt carrier velocity caused by the suppressor.

Sound Metrics & Decibel Reduction

To provide a complete picture of the best suppressors for sound reduction, our testing series includes decibel readings and sound analysis. This data allows for a direct comparison of the auditory signature and muzzle blast reduction of each model when fired under identical conditions on the same host platform.

Understanding the Data: Gas Settings & Back Pressure

Our Blackout Defense host rifles utilize a 40-setting adjustable gas block. Each "click" or setting represents 2.5% of the total gas flow (100% / 40 settings = 2.5%).

• Negative Number (-): Indicates an increase in back pressure. The gas setting was turned down from the benchmark to compensate for the additional back pressure.
• Positive Number (+): Indicates a decrease in back pressure. While theoretically possible, this is highly unlikely to occur with the addition of a suppressor.