Peak Performance: Cleaning Your Airsoft M4 Inner Barrel (KWA SR7)



Peak Performance: Cleaning Your Airsoft M4 Inner Barrel (KWA SR7) |

One of the most important parts of keeping your AEG at the peak of its performance is cleaning and maintaining the inner barrel.  The inner barrel is responsible for stabilizing the BB as it travels out of the AEG.

If the inner barrel is dirty or wet it can cause your accuracy to decrease.  If your shots are flying to the left or right, this is most likely due to the inner barrel being dirty.

In the below video, I’ll explain how to properly disassemble and clean the inner barrel on your M4 AEG (I don’t have an AK style AEG to demonstrate on at this time.  If I acquire one, I will try to do a video on it as well).

In the video I will:
– Give you a list of equipment you’ll need.
– Talk about the debate behind using oil to clean your inner barrel.
– Demonstrate disassembling the upper receiver and removing the hop up unit and inner barrel.
– Show you how to clean the inner barrel.
– Reassemble the gun.

Here is a list of the items you will need to clean your AEG’s inner barrel:
– Operator’s Manual
– Battery
– Cleaning and Unjamming Rod
– Gun Cleaning Patches
– Pen Light
– Permanent Marker
– Tools for removing the rear body pin (like a rubber mallet and Allen keys)

Please Note: I recommend removing all of your accessories (i.e. red dots, 1 point slings, etc.) so they don’t get in the way during the cleaning process.

I hope this video gives you the information you need to keep your inner barrel well maintained; and keep your AEG performing at its peak.  Enjoy!

(If you are an email subscriber, click HERE to watch the video on

Here are some links to check out if you want to know more about maintaining your AEG’s inner barrel:

How To Clean Your KWA Inner Barrel, Hop Up, and Bucking (from the KWA USA Forum) YouTube- The Training Center: Cleaning Your Airsoft Inner Barrel
KWA SR7 Operator’s Manuel (from the KWA USA website)

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