Description
NcStar AR15 Rear A2 Back-up iron SightFree Courier RSA OnlyPlease contact seller to check stock AR-15 Detachable Rear A2 Iron Back-Up Sight (Dual aperture) Precision Made Fixed A2 Design Adjustable for Windage and Elevation Mounts onto Weaver & Picatinny type rails Aluminum & Steel Construction Length: 2.7" Weight: 5.1 oz