A few month ago I purchased a PSG-1 Trigger Pack from a member of HKPRO and decided to swap it out for the pack in my SR9. It was easy enough to do except that when I tried to charge the rifle I was UN-able to charge it ALL the way to the rear. I figured out that the ejector on the new trigger pack is unlike the SR9's. The new ejector has a greater upward slope, possibly as much as 15-20 degrees more. This extra slope does not allow full rearward bolt movement. ANY IDEAS!!!