It was worth it for me. I got my PC 40L (SKU 10100) for a good discount, and am very happy with it. I feel the trigger is better than standard if that's all your looking at. I am in the process of doing the Apex flat faced forward set trigger mod to mine, but that's just for my needs. I have shot a 9L with the Apex trigger and, in my opinion, it's the cat's nuts. But the M&P is a great service pistol, and you can go from there. But definitely get a CORE, the optics are worth the extra money.
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