If you call Smith and talk to a human they'll send you any non-FFL part you need for the gun. It is NOT nor will it ever have the aftermarket trinkets available for it that Glock's do. It wasn't designed & marketed for that purpose. It was totally created for a whole lot of folks who did not want an over- priced plastic pistol for self defense needs. For that purpose the SD line is a great buy. If you want plastic that has a ton of aftermarket trinkets to choose from Glock is the king of the hill.