Are you shooting subsonic or CCI quiets? the CCI subs should cycle the slide for you and be quieter than the regular bulkpack stuff.[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif][/FONT]
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The CCI's I have say subsonic. They are only 29 grain and 710FPS. I'd wish they would cycle in the gun but I got them cheap a long time ago so I might as well shoot them. As for a new piston on the Osprey, I already have it for the 9mm. Just now barrels threaded yet. I want to get my barrel threaded on my MP5K clone! It only had a 3 lug barrel now.
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