Get the Meprolight Advantage: - Unequaled Low Light Performance - Brightest Night Sights Available Today - Used by Military & Law Enforcement - All Tru-DotA(R)sights are covered by a 12 years usable illumination warranty to original purchaser. Green Dot/Green Dot This family of sights is meant for use on 9mm and .357 Sig P-series pistols with #8 front and #8 rear sights.