I had to deal with PDI springs for some time now.... 90% are shit.... I've seen PDI 150 shooting 480 fps, PDI 170 shooting 350 and PDI 120 going for the 400.... Lenght wise they are all over the place it's not even funny...I've seen a 1 inch variant betwine two pdi 150 ( that i bought at the same time and from the same distributer)this is over the course of 2 years. I've had nothing but issues with them and was never satisfied with the results they gave out in my guns. Lately it's only getting worst. I still ownder why people buy them... I guess it's a bit like CA...beats me.....You know they are shit, it's been proven and said many times but they still sell. I've switched all my guns (14 of them) to guarder springs except in my thompson that runs and TOp power and the RPK that runs a m120s.
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Vondnik, team Bad Karma, PQAC
Murphy's second rule: Nothing is impossible for the man who does not have to do it himself.
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