Prevent Your Airsoft Gun from Losing Spring Tension

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Prevent Your Airsoft Gun from Losing Spring Tension

One of the biggest problems with FPS drop in airsoft guns is spring tension. Holding the spring compressed for long periods of time causes it to "settle". That translates to losing velocity. It's true that the AEG spring is always under tension, even when the piston is touching the piston head. But that's where the spring should "settle". If the piston is just pulled back slightly, it would cause more tension on the spring. Holding it there for long periods of time will cause the spring to "settle" with the wrong tension.

I took apart my airsoft AEG just a little while ago as I mentioned in the Clean Your Barrel to Increase FPS thread. First thing I noticed is that the piston was pulled half way back. (I have a custom ported cylinder so I can see the piston position.) I was literally shocked! Because after the indoor CQB games, we were required to clear out any BB's by dry firing with no magazine in semi-automatic mode. Apparently I hadn't pulled the trigger long enough for the piston to return completely to the piston head.

Lesson learned: after a game session, while clearing your gun of BB's, always use semi-automatic mode and hold the trigger for a few seconds on the last shot. This procedure ensures that the piston is completely released and spring tension is at a minimum.

Jake
Fri, 27 Sep 2013 21:24:03 +0400

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Title: For the Lazy: Maintain Airsoft FPS with a Spring
Weblog: GearHack
Excerpt: Just today, I wrote "Clean Your Barrel to Increase FPS". It increased my AEG's FPS by 35 to be exact. And that was not a very thorough clean after six indoor cqb games. After writing that article, it make me think of ways to keep the FPS high, but doing less maintenance. One theory is to use a stron . . .
Tracked: Fri, 27 Sep 2013 22:20:53 +0400

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