How to Take Apart an M15a4 Airsoft Gun
- 1). Use a flathead screwdriver to unscrew and remove the frame lock pin on the lower receiver (located adjacent to the barrel).
- 2). Separate the upper receiver from the lower receiver by pulling it forward. Exercise caution not to damage the wire affixed to the lower receiver.
- 3). Remove the barrel by pulling it out of the assembly.
- 4). Open the ejection port cover on the right-hand side of the upper receiver (the cover is held in place magnetically).
- 5). Adjust the dial in the hop-up chamber (located inside the ejection port) to desired feed speed.
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