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Laser grips without any doubts.. there will be no question if you're aiming on target (with both eyes open) with them, ever..
Just make sure that you are current/comfy with any +P 9mm as opposed to what your practice with at the range, as in 115gr FMJ, one can, as I do, shoot 124gr JHP's and the accuracy and recoil is identical, and the 124gr offers both a very high velocity with good weight for punch, with great spread once inside soft tissue..
To be clear, firing 200 rounds of 115gr FMJ and what you feel, how well you follow-up with quick-follow-up shots vs most +P is not the same, and you'll have to spend some bucks, to truly get the feel of most +P in JHP's to really know what to expect thru time-spent, rounds shot, of the stuff..
IMHO, using either 124gr or 134gr in JHP will do the job, and the first 2 shots are gonna be the most important in a fluid moment, based on fear..
Ls