finally komrad Hao let me finetune his CM-050.
check out vid hehe...
{yt}YVzUXv_l6Gg{/yt}
http://www.youtube.com/watch?v=YVzUXv_l6Ggused to be 450 fps untuned so stilll not bad fps ootb.
will a post an quicky review soon hehe.
btw - the blowback feature ain't as good as the one on the cm-046.
here's why...
{yt}l8jNGE2bf4E{/yt}
http://www.youtube.com/watch?v=l8jNGE2bf4Eunlike cm-046 which let the charging handle always at closed position inspite
whatever the piston is positioned inside the cylinder.
good thing is it helps shows if the spring is relaxed or at almost decompress
state if fired at semi.