Daniel Defense A1.5 Fixed Rear Sight Picatinny 6061-T6 Aluminum Black

The Daniel Defense A1.5 Fixed Rear Sight is a lightweight, rugged back-up iron sight engineered for modern sporting rifles using popular reflex optics. Its one-piece, Rock & Lock mounting design installs quickly on any Mil‑Spec flat-top upper receiver without interfering with the charging handle. Machined from 6061‑T6 aircraft-grade aluminum and finished with a Mil‑Spec hardcoat anodize, this fixed rear sight delivers dependable performance and long-lasting durability. It is set for absolute co-witness height and includes dual apertures to match your shooting conditions.

Product Highlights

• One-piece Rock & Lock mounting for Mil‑Spec flat-top uppers
• 6061‑T6 aluminum construction with hardcoat anodized finish
• Absolute co-witness height with dual apertures (0.070" / 0.200")
• Precise 1 MOA windage adjustment for repeatable zero
• Slim, streamlined profile that clears the charging handle; weighs only 1.70 oz

Specs

• Model: A1.5 Fixed Rear Sight
• Type: Fixed rear iron sight
• Mount Type: Mil‑STD 1913 Picatinny rail
• Material: 6061‑T6 aluminum
• Finish/Color: Black hardcoat anodized
• Windage Adjustment: 1 MOA
• Apertures: Small 0.070" / Large 0.200"
• Height: 1.78"
• Length: 1.38"
• Width: 1.24"
• Weight: 1.70 oz
• Firearm Fit: AR‑15 / AR platform, Mil‑Spec flat-top receivers
• Co-Witness: Absolute
• UPC: 852548002110
• Manufacturer Part Number: 1906411002
• Brand: Daniel Defense