Meprolight Ruger Tru-Dot Night Sight for SP101 (.38 spcl. & .357 mag.) Front sight only No Imported Front sight only Unequaled low light performance Brightest night sights available Used by military & law enforcement All Tru-Dot sights are covered by a 12 year usable illumination warranty to original purchaser Get the Meprolight Advantage Unequaled Low Light Performance Brightest Night Sights Available Today Used by Military and Law Enforcement