Luth-AR A1 Rear Sight Assembly - UR-21A
In stock
Give your modern AR-15 / M16A1 that retro look and feel with the Luth-AR A1 Rear Sight Assembly
Manufacturer Number: UR-21A
Material: Steel
Finish: Matte Black
Kit Includes:
-
UR-09-E3 Rear Sight Windage Drum
-
UR-10-E3 Rear Base Spring Pin
-
UR-13-E3 Rear Sight Aperture A1
-
UR-11-E3 Rear Sight Detent
-
UR-12-E3 Detent Spring
-
UR-14-E3 Rear Sight Windage Screw
-
UR-28 Rear Sight Flat Spring
| Weight | 0.16 oz |
|---|---|
| MPN | UR-21A |
| UPC | 859992007135 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
- build
- sight
- Installation
- parts
- place
- roll pin
- M16A1
- AR15
- customer
- Works
US
Perfect Match!
Great looking A1 Rear Sight Assembly Kit. This one has 33 available clicks on the windage drum, which is correct according to the U.S. Army manual, TM23-9 instructions for setting the mechanical zero on an A1 rifle on page G-13. Center should be 17 clicks from aperture being all the way to the left side. This assembly completed my upper receiver build for a 653-retro carbine, with all the parts coming from AR15 Discounts, including a stripped upper receiver, ejection port cover, teardrop forward assist and this Luth-AR A1 Rear sight Assembly Kit. Everything matched beautifully and fit together perfectly, not to mention the great prices on everything! Thanks, AR15 Discounts, I love it!
USNice rear sight parts for an A1 Build.
This set fit perfectly on my A1 Upper and I am very happy with the quality.
USLuth-AR A1 Rear Sight Assembly
used it on the M16A1 Stripped Upper Receiver - M4 Feed ramps, fit perfect for my retro build
USLooks good!
The installation was fairly easy, but you really need a second set of hands to dress the sight wheel while installing the roll pin.
USWorks great
Installed this in my NDS receiver. Fit is tight and I can wait to take it out.
