The Meprolight 0117653101 provides exceptional night sight capabilities for your S&W 1911 FS. With combat-proven, self-illuminated technology, these sights enhance your accuracy in low-light situations, significantly improving your hit probability on both stationary and moving targets. Designed as a direct replacement for standard sights, installation is straightforward with minimal modifications required. Featuring Tru-Dot technology, these sights are highly visible in daylight, low-light, and nighttime conditions. With no batteries or switches needed, they're always ready for action. Trusted by leading firearm manufacturers, these durable sights ensure your handgun is equipped for any situation.MEPROLIGHTs combat-proven self-illuminated night sights enable you to upgrade your capabilities to hit stationary or moving targets under low-light conditions with dramatically increased hit probability. Designed as replacement parts for the standard weapon sights, Meprolights Self-Illuminated night sights can be mounted directly with minor modifications. Meprolight leads the world in OEM and after-market self-illuminated sights for handguns. Designed to replace the existing front and rear sights, the highly visible Tru-Dot sights are perfect for daylight, low-light, and nighttime conditions.Features :First choice of leading firearm manufacturersNo batteries, no switches - always ready for actionTritium poweredHighly durable structure