Originally Posted by Najohn
I have ball bearings on both my piston head and spring guide, and atleast for me the spring will go back to its original decocked state whenever I fire it.
What happens on some AEGs is the piston will half cock and lockup with the spring loaded.
All the bearings in the world won't continue to draw the piston back and cycle it to ease the spring in that situation.
If you leave the spring that way for weeks/months it will start to sag out, and loose it's shove.
The bearing guides make sure the spring doesn't clock around the piston as you fire.