Krazeh Posted November 19, 2014 Report Share Posted November 19, 2014 Looking to replace the piston head in my PX4. Any recommendations? Quote Link to post Share on other sites
bankz5152 Posted November 20, 2014 Report Share Posted November 20, 2014 PDI On my phone my spelling will suck Quote Link to post Share on other sites
Ryaw Posted November 20, 2014 Report Share Posted November 20, 2014 Just for info, I always upgrade my standard TM inner barrels to PDI 6.01 and have never had any jams. It gives a nice increase in FPS and accuracy. I use my pistols at close range CQB and at max range woodland without issue, so losing range is not a problem. I run PDI 6.01 in my Glock 17, P226 E2, Desert Eagle and MK23 SOCOM. Quote Link to post Share on other sites
Krazeh Posted November 20, 2014 Report Share Posted November 20, 2014 Any suggestions on where to get a PDI piston head? Had a look on google but can't seem to find one for the PX4.. Quote Link to post Share on other sites
bankz5152 Posted November 20, 2014 Report Share Posted November 20, 2014 If memory serves its the same one that fits the 5.7. You may have to buy from HK Quote Link to post Share on other sites
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