Fix An Air Soft M4

Airsoft, like paintball, is a combat-style sport usually played on a private field or range. Airsoft incorporates replicas of military weapons that shoot non-metallic ammunition. The Airsoft M4 is a replica of the U.S. military-issued M4 carbine rifle, and, as is the case with all weapons, will require periodic maintenance. One common problem associated with the Airsoft M4 is a shaky or wobbly stock that occurs over time. The problem can be fixed easily with the right tools.


1. Unload the weapon completely. Visually inspect the chamber to ensure that no ammunition is present.

2. Pull down on the stock lever, then slide the stock off. Locate the end rod, into which the stock lever locks.

3. Locate the 1/4-inch Allen screw at the end of the rod. Remove the screw with the Allen key.

4. Pull off the plastic cap on the end of the rod. Look at the end of the rod and you’ll see a small Phillips-head screw. Tighten the screw a half turn. If the stock is still wobbly, tighten the screw further until the stock is tightened to your satisfaction.