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→IIk. The Bushings:
http://www.airsoftretreat.com/gallery/data/624/medium/16.jpg
==== TM Note: ====
If you are upgrading your spring, it is almost essential that you replace the nylon bushings in your gun with metal bushings. Nylon can’t take the excess friction involved with the replacement of an upgraded spring. Upgraded spring means more friction, friction means heat, heat makes nylon melt, get it?
=== IIl. The Shims: ===
