My next investment will be a set of laser sights and then a tactical rail-mounted light.
As a side note, I fire 230 grain hollow-points, which have more than enough knock-back power to throw a typical adult male zombie several feet. Humans typically don't survive 230 grain hollow point .45ACP rounds, regardless of where a round hits. They are popular in law enforcement for their tremendous hydrostatic shock ability.
I recommend this pistol to anyone who may need to survive the zombie apocalypse. It can be fitted with any tactical attachment, including wet and dry suppressors (but suppressors only function properly on this gun using sub-sonic ammo).
This gun ranges from $400 to $2000, depending on make and dealer. They are all basically the same though. Mil-Spec is Mil-Spec. There may only be up to a .005" difference in size between machined parts by different manufacturers so the parts are all interchangeable.
I've included a few pics for you guys. Hope you guys enjoy.
Before my new hammer job:

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Field Stripped before my new hammer job:

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After my new hammer job:





