If you want to make it "yours", buy more mags, then shoot it, shoot it,and then some more. Then you can change the trigger,add red,green,IR laser, Bayonet, mag extension, Cerakote camo, titanium internal components, springs, threaded barrel, suppressor. But shoot it first, learn the gun and you will be able to make additions ( if needed/wanted ) based on your perceived/actual needs. My laser max guide rod laser is great fun for the cat, 300+ when I bought it- useless- I am not going to take my finger OFF the trigger to activate it when someone is closing on me with a knife!! My M&P 40 is great, night sights, No mag safety, NO thumb safety, NO internal lock, more accurate then I am, I do not like weapon mounted lights on a handgun. So mine is " perfect" for "me". Be Safe,