LUTH-AR UR-21K A2 Rear Sight Assembly/Kit designed to mount on AR-15 A2 upper receivers; this kit requires user assembly.
The LUTH-AR UR-21K A2 Rear Sight Assembly/Kit is a complete A2-style rear sight designed for installation on A2 upper receivers for AR-15 platforms. The kit ships disassembled and requires user assembly; it provides standard A2 rear sight functionality and a black finish. This product is suitable for range practice and sight restoration or replacement on compatible rifles.
Product Specifications
The manufacturer is LUTH-AR.
The model is listed as the A2 Rear Sight Kit (UR-21K).
The fit is specified as AR-15 A2 upper receivers.
The color/finish is Black.
This kit requires assembly by the end user.
The sight is intended to mount on an A2 upper receiver.
The subcategory is Long Gun Sights.
The manufacturer part number is UR-21K.
Kit contents are referenced in the listing schematic and manufacturer documentation included with the listing.
UPC is 812058031383.
This A2 rear sight kit offers a straightforward replacement or restoration path for shooters maintaining service-style sight configurations. Its simple, proven design makes it a practical choice for range work and for restoring A2 sight functionality on compatible AR-15 uppers.
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