CORE
I have the new S&W M&P C.O.R.E. in 9mm. with the J-Point micro red dot installed. I purchased the CORE as I already had the FN Tactical .45 with the Trijicon RMR and really like the combo. However the FN is a tad too large to carry concealed. The CORE is carryable and concealable with the J-Point.
I really like the CORE. It has been very reliable with no malfunctions of any kind in several hundred rounds (Ball & HP rounds). Extremely accurate and has a pretty good trigger for a plastic pistol. Also comes with the "mounting plates" for 4 of the top red dot systems available (I believe these retail for about $50 each if purchased elsewhere. So this is a great freebie.). Also comes with coupons for REAL discounts on several micro-red dots ie as much as 50% off. It is boring easy to put an entire magazine through the same hole at 8-10 yards. Having owned two pistols with micro red dots I am of the opinion that there is no down side. And they transform a pistol into "more than a pistol" in use. Both of mine are accurate enough to literally shoot squirrels in the head from a rest. Also, in my opinion, all manufactuers will eventually copy the FN & M&P or be left behind. Just my opinion but I do own two and have put a lot of rounds down range with both.
I purchased both of mine new at Gun Shows. Both were quite expensive. From memory, the approx. cost was the FN ran about $1100 and the Trijicon $500. The M&P C.O.R.E. was $700 and the J-Point $280 or so. The J-Point, in my opinion is not as tough, durable, water proof, and combat proven as the Trijicon. However it is the smallest, lightest red dot available and I would purchase it again for those attributes. The J-Point is not water proof nor as robost, but I'm not in combat either. The J-Point literature would suggest that they are used in war zones though.