BB Weight Shootout! Best BB for Your AEG

A common question we get asked is, "What's the best weight BB for my airsoft gun?" The answer is: It's complicated!

In the video below, we take a look at the most common BB weights used by airsoft players in their AEG guns and run them through a stock G&G Armament Combat Machine. Although every gun will perform a bit differently, this test makes drawing general conclusions quite simple. By doing this, we shed some light on the best AEG BB weight so your own M4 or AK47 replica will perform its best.

Best All-Around BB Performance

The 0.20g BB is far and away the generic industry standard for many users. These BBs are reliable and also have widespread availability, making them the default go-to. The round is consistent and performs well in many different guns, making it a great all-around choice for AEGs that may be stock or shooting within CQB FPS ranges. You'll not want to go any lighter than this round for your rifle. A 0.12g BB may fly farther than other ammo, but they are less stable. Furthermore, most are poorly made and can have casting seams that will damage your gun's hop-up unit.

BBs for Field Action

When your gun is shooting a bit closer to the FPS ranges typically associated with outdoor play, you may want to consider anywhere from a .25-.32g BB. Though you'll lose velocity of the round due to the heavier projectile, this range of BBs typically produces a more stable flight pattern and increased overall accuracy at range. The .28g BBs used in our video scored the most hits out of all rounds tested, offering optimal accuracy and range from the maximum engagement distance. These BBs are also quite popular for airsoft LMGs at events that allow them to shoot above normal Rifle FPS limits.

The 0.28g BBs used in our video scored the most hits out of all rounds tested, offering optimal accuracy and range from the maximum engagement distance. These BBs are also quite popular for airsoft LMGs at events that allow them to shoot above normal rifle FPS limits.

Long-Range & Upgraded Gun BBs

Generally speaking, 0.34ís, 0.43ís and beyond are usually reserved for sniper or marksman platforms that have been upgraded extensively. The extreme FPS these airsoft guns produce is generally unstable with any BB that is a lower weight than this. If your AEG does have enough power to handle these larger projectiles, you will experience excellent sustained velocity and trajectory. The stock Combat Machine we used in testing was not able to produce enough backspin via the hop-up for these rounds to be a viable option in any field scenario.

Check out the full video below!
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