My recommendations are pretty general, but they usually work out well in the end.
1. Clean every nook and cranny of the gun. I know that they may have cleaned the surface pretty well, but that preservative can wedge in tight spaces like the extractor, firing pin channel, locking block, and even inside the magazines. Disassemble whatever you can easily, and don't be afraid to let them soak in your cleaner of choice.
2. Wrack the slide a couple dozen times, sometimes the recoil spring is tight and needs to be relaxed slightly. It may annoy the significant other if they're in the same room, but it can't really hurt anything to do it.
3. Try a different brand of ammunition. Personally, I have very few problems with Remington ammunition but 115 gr. is slightly under weight of the recommended 124 gr. ammo. In a broken in gun, 115 will run fine, but basically a new tight gun it may have short strokes giving you your jam issues.
4. In the odd likelihood that it may be happening, try to avoid limp wristing the gun. Let the recoil lift your forearm, not your hands at the wrist.
Hopefully those tips, will get you on the right path to enjoying your 92. It's a great gun, and can be an absolute pleasure to take to the range.
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