FAB FRONT BACKUP SIGHT
FBS is an advanced, low-profile, durable, auxiliary front sight. It can be used with any rear sight, but has been designed to provide an extreme optical advantage when paired with the FAB Defense® RBS Rear Back-up Sight. Sight pin elevation is easily and quic..
FAB REAR BACKUP SIGHT
The RBS is an advanced, dual aperture, durable and low-profile auxiliary rear sight. It can be used with any front sight and was designed for more accurate aiming and faster target acquisition. Windage is easily and quickly adjusted without tools.
RBS is readily mounted..
FAB K.P.O.S GLOCK 21 & 21SF PISTOL CARBINE BACKING PLATE
These DO NOT come with Flip-UP Sights as pistured
Compatibility: 21 & 21sf Requires back plate replacement for FAB K.P.O.S GLOCK PISTOL CARBINE KIT
evidence of FAL B Endorsement required to purchase