Hard to guess what it is without seeing a video or the pistol in person. I'm trying to envision what you are experiencing.
Have you shot it yet? My guess is strip it down & give it a good cleaning. Get a can of Birchwood casey Gunscrubber & stick the straw tube in the striker channel clean out hole under the slide, shoot the gunscrubber iniside the frame in and around the trigger group while working the trigger back & forth. Shoot the gunscrubber in and around everything that moves in the frame, keep working the trigger. Shake it out & wipe dry with paper towels & lube according to the manual. I use FP-10 on my pistols, Rem oil on a terry cloth towel & wipe down the exterior when finished...
My guess is plastic flashing a burr or small machining particles is what you might be hearing.. Might even be a creaky trigger spring (or a trigger spring with dirt from manufactuering under it) that is begging to be broken it. But clean that thing out, lube it & shoot the heck out of it.
Have fun!
Last edited by CaptRon956; 07-31-2015 at 08:10 PM.
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