I'm not sure if WA experience is directly applicable to TM-clones and I don't know if it's as simple as stronger hammer spring = more fps. My understanding of TMxx11 gas system is that a stronger hammer spring is not warranted in most cases and can lead to cycling problems. The stronger the hammer spring, the stiffer the action of the hammer, the harder it is for the slide to blowback smoothly.
The stock recoil rod is fine, assuming KJW's is also metal, can't really imagine it being anything else.
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Last edited by The Saint; July 28th, 2007 at 10:58..
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