FAB Defense Rear Back Up Sight (RBS) Broad Toe Durable and rigid nailed ABS

Durable and rigid nailed ABS heel

They don’t come with clips or loops to secure it in place

flat copper rivets

for additional safety

14 Layer Fully Multi-Coated Lenses

FAB Defense Rear Back Up Sight (RBS) Broad Toe Durable and rigid nailed ABSThe 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 on any 1913 Picatinny rail, making it ideal for use on M4 AR 15 M 16 platforms and on the FAB Defense K. P. O. S. Advantages: Can be used as primary or back up sight Ergonomic angel