I think a lot of that would depend on what gun we're talking about. Just a guess, but I think you'd be better off just buying a Springfield XD or XDM as they feature a grip safety, or a 1911 for that matter.
i was wondering if it is possible to install a grip safety on a gun that doesnt have one now. I want one like the safeties on a Colt 1911.. if it is possible is it a lot of work, and how much money would that cost?
Doubtfull.Anything is possible with enough money,but it comes down to feasability.Some designs probably could,some require reengineering.
What gun are you talking about?While you may not get the safety feature,adding a beavertail has been done for years.All that's needed is a similar block of material,a welder,and skillful blending with a refinish.It turns out expensive anyway,and since a refinish is involved any other frame mods can be done at the same time.Perfect time for a dehorning,grip texturing,etc.There's no easy cheap way around it I've seen outside of a stainless 1911.