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Luth-AR
A2 Rear Sight Kit
$79.95
$75.15
Sale Price
Available
Luth-AR A2 Rear Sight Kit, Fits A2 Upper Receivers For AR-15 Firearms, Black UR-21K
Key Details
Brand
Luth-AR
Manufacturer Part Number
UR-21K
UPC
812058031383
SKU
LUTHUR-21K
Current Stock
24 available
Quantity Updated
Jul 23, 2026 2:52 AM
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Purchase Requirements
- Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description
Complete A2 rear sight kit, this kit requires assembly and will mount on an A2 upper receiver.
Features
- UR-29 A2 Rear Base Lug (x1)
- UR-27 A2 Rear Sight Aperture (x1)
- UR-28 Rear Base Flat Spring (x1)
- UR-26 Rear Base Windage Knob Screw (x1)
- UR-23 Rear Base Windage Knob (x1)
- UR-22 Rear Base Windage Pin (x1)
- UR-24 Rear Base Spring (x3)
- UR-25 Rear Base Ball Bearing (x3)
- UR-33 Rear Base Index Elevation (8/3) – (x1)
- UR-34 Rear Base Elevation Knob (x1)
- UR-31 Rear Base Elevation Knob Spring (x1)
- UR-06 Rear Base Spring Pin (x1)
- UR-32 Rear Base Index Screw (x1)
Specifications
UPC:
812058031383
Manufacturer:
Luth-AR
Manufacturer Part #:
UR-21K
Model:
A2 Rear Sight Kit
