FAB Defense FRBS Rifle Sights Kit Tan

FRBS kit is an advanced, low-profile, durable, auxiliary front and rear kit sight. It has been designed to provide an extreme optical advantage when paired together. Sight pin elevation is easily and quickly adjusted without tools. FRBS is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4 / AR-15 / M-16 platforms and on the FAB Defense KPOS.Product Advantages:Can be used as a primary or back-up sighting solution Sleek design with minimal protruding parts, will not get caught on gear or webbing No tools needed for a quick and easy elevation and wind adjustment RBS - Rear Back-up sight can be manually adjusted for wind FBS - Front Back-up sight can be manually adjusted for elevation Durable fiberglass reinforced polymer and metal construction Spring based locking mechanism - will not break or deformCompatibility:All 1913 Picatinny rails The FBS should never be mounted on a railed gas blockSpecifications:Length: 52 mmWidth: 32 mmHeight: 14 mmLength deployed: 30 mmHeight deployed: 42 mmWeight: 30 gr