Lower FPS on Airsoft Gun How To

Introduction

There are countless ways to adjust an airsoft gun and its various components in order to maximize accuracy, firing power, and overall performance. This article will address one piece of the puzzle, which is how to lower and adjust fps (feet per second) levels for indoor or tournament play. We'll cover 8-12 topics to give you an exhaustive list of different techniques to use in order to get the desired fps level for your airsoft gun.

Step 1: Check Your Gun Velocity

Before you even attempt to lower the fps on your gun, you should check to verify the initial velocities by performing a chronograph test with a Chrony Chronograph (or similar device). Generally, most indoor fields or tournaments will require an fps of below 350.

Step 2: Change the Inner Barrel

Increasing or decreasing the length of the inner barrel can help to adjust the muzzle velocity. Shorter inner barrels may lower the muzzle velocity, while longer inner barrels can increase it.

Step 3: Adjust the Hop Up

The hop up, which helps the BB to gain backspin, can also affect the fps value. Adjust the hop up settings in order to help maintain an even fps over time.

Step 4: Adjust the Cylinder Volume

Changing the cylinder volume (BB storage capacity) of the gun can also help to adjust fps levels. Generally, raising the cylinder volume will result in increased muzzle velocity, while decreasing it will result in decreased muzzle velocity.

Step 5: Adjust Your BB Weight

Using single precision barrels (6mm) and .20-gram BBs have the most air volume and are proven to fly faster, equalizing the fps while enlarging the modification range for hop up and pressure.

Step 6: Adjust Your Spring Weight

Using flat, variable pitch springs and low speed, high torque motors helps to adjust the muzzle velocity and automatically synchronize motor revolutions with spring force.

Step 7: Adjust the Deflector

Changing the deflector angle will cause the airflow to be taken in a different direction, which can help to lower the muzzle velocity.

Step 8: Limit the Hop Up Settings

Keeping the hop up settings to a minimum helps to stabilize the fps over time. It will also increase the lifespan of the gun and decrease the risk of the gun performing routinely above the limit.

Step 9: Install an Adjustable M170 Spring

Installing an adjustable M170 spring will help to lower fps without having to sacrifice too much of the muzzle velocity or accuracy (good for indoor and point blank shots).

Step 10: Install a Brake/Rifle Stabilizer

Installing a brake or rifle stabilizer will help to reduce recoil, which can in turn help to reduce overall muzzle velocity.

Step 11: Install a One-Piece Spring Guide

Installing a one-piece spring guide with a bearing system helps to reduce spring tension and reduce the overall fps speed for ultra-long life and more consistent performance.

Step 12: Install an M140 Spring

Installing an M140 spring is easier than changing the main spring, and it helps to reduce the fps significantly without sacrificing accuracy and range.

Summary

With these 12 tips, you should now have a pretty comprehensive understanding of how to go about lowering the fps on your airsoft gun for indoor or tournament play. Of course, these are just some of the many ways to go about this it may take some experimentation on your part to find the optimal solution for your particular gun and playing environment. Above all, please be sure to use safety precautions when making any modifications to your gun.