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Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob UR-21A-R Color: Black, Country of Origin: USA, $1.00 Off

Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob, Black, UR-21A-R
Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob, Black, UR-21A-R
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Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob, Black, UR-21A-R

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Customer Reviews
Most Recent Reviews
As Advertised! by Hitecredneck, Verified Owner, November 1, 2025
I bought a C7 upper where the windage screw had broken. This fixed the problem amazingly well. The only issue I had was that it got lost in shipping for two weeks, but that was USPS’s fault, not Optics Planet. They nailed it.
Most Recent Reviews
the smallest roll pin by Noah Patton, Verified Owner, December 19, 2024
Thank goodness that the kit comes with two roll pins. I lost one and almost destroyed the second. I highly recommend purchasing a roll pin starter punch. Installing the site with anything else will make you want to pull your hair out.
Read All 2 Reviews

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Color:
Black

Code: 3FN-IRN-LTH43-UR-21A-R

MPN: UR-21A-R

UPC: 812058032595

List: $33.99Save $1.00
$32.99

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob

The Retro A1 Rear Sight Assembly is a high-quality, upgrade for your AR-style rifle. It features a sleek, durable design and Retro Style Rear Sight Windage Drum, making it easy to get the perfect shot every time. Whether youre hitting the range or hitting the field, this sight will help you shoot with confidence.image

Specifications for Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob:

Manufacturer: Luth-AR
Color: Black
Country of Origin: USA

Package Contents:

  • Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob
  • UR-09-E3-R: Retro Style Rear Sight Windage Drum
  • UR-11-E3: Rear Sight Detent
  • UR-12-E3: Rear Sight Detent Spring
  • UR-13-E3: Rear Sight Aperture
  • UR-14-E3: Rear Sight Windage Screw
  • UR-16: Rear Sight Base Roll Pin
  • UR-28: Rear Sight Flat Spring

Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob Orderable Models

List of Orderable Models

  • Luth-AR Retro A1 Rear Sight Assy w/Retro Windage Knob, Black, UR-21A-R , MPN: UR-21A-R , UPC: 812058032595 , Code: 3FN-IRN-LTH43-UR-21A-R
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Last updated 2026-09-11 UTC.