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AR-15 A1 REAR SIGHT ASSEMBLY

AR-15 A1 REAR SIGHT ASSEMBLY Reviews & Ratings

The Luth-AR AR-15 A1 Rear Sight Assembly adds that extra touch of authenticity to your retro build. It is designed to look and act the part of the original-style rear sight on your reproduction AR-15 / M16A1. While the modern AR offers various improvements there’s nothing wrong with having an appreciation for Eugene Stoner’s original design. The Luth-AR reproduction A1 Rear Sight Assembly features all-steel construction and non-reflective a matte black finish. It includes the aperture, windage drum, detent, detent spring, windage screw, and roll pin, so it is ready to install on your next build - or to give an existing rifle a different look.

The A1 rear sight features two apertures, one unmarked, for closer targets, and one marked "L" for long range.

See all of our AR15s and AR15 parts here.

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Reviews Summary
The Luth AR-15 A1 Rear Sight Assembly has garnered mixed feedback from users, with many praising its classic aesthetics and fit while others lament issues with installation, poor quality control, and difficult adjustments. Overall, it suits retro builds, but buyers should be prepared for potential installation challenges and quality variability.
What Reviewers Are Saying
Installation Issues
75%
Many reviewers highlight difficulties during installation, primarily due to misaligned screws and tight fits. Some users report having to resort to additional tools or modifications to make the sight work with their uppers, causing frustration.
Quality Control
70%
Numerous reviews mention varying quality in the rear sight assemblies, noting issues like poorly machined apertures, excessive burrs, and components that do not fit together smoothly. This inconsistency has led to many dissatisfied customers who received defective units.
Product Functionality
60%
Despite the installation challenges, several users appreciate that once installed, the sight functions well for their intended purpose. Positive comments focus on its accuracy and reliability in sighting when properly fitted, though this may require significant effort.
Aesthetic Appeal
50%
Reviewers frequently mention the sight's classic look and compatibility with retro builds, suggesting that while the product may have functional issues, its appearance and design are up to par with original specifications, adding to its appeal for enthusiasts.
Value for Money
45%
While the pricing of the Luth AR rear sight assembly is generally seen as affordable compared to surplus options, reviews suggest that buyers may end up needing to invest time and effort into making it work, leading to mixed perceptions about its value.
3
Meh not bad not great
I needed this and it was the only one in stock. Appiture holes seem to be at the same hieght. Roll pin is a pain. Mostly due to tryong to install on a round part. A littl oil and rool pin starting punch helped
Would you recommend this? Yes, I would recommend to a friend
3
Fitting required
I’ve installed several of the Luth AR A1 rear sights, and they are frustrating. Yes, you need to compress the spring to get the rear screw installed, but they all require a bit of fitting. Getting that tiny roll pin installed is the issue. Using soft jaws on my vise, I chased (pre-installed) and test fit the roll pin on the parts it must pass through. I use oil/Kroil and fine sand paper to de-burr just the tip of the roll pin. In contrast, I’ve used surplus A1 Kits that simply install without any resistance. You can definitely make these Luth AR sights work, but the Surplus Kits work much better at twice the price. It’s your money and your rifle.
3
It looks the part
Both apertures are the same size. If you plan on using an optic and just want something that looks the part, this will work fine for you.
3
It'll Work
Leaf spring was a little stiff to install but works correctly when in, but the iron sights are both the same size so you have to drill one larger.
3
Not the best quality.
These kits now include a rear sight that is of the correct profile rather than a tombstone, and all the parts now fit together without modification. However the quality on the sight itself is still rather poor. There is a lot of flash and even a little bit of deformation on the tops of the sight leaves.
3
Needs fitting, but does work, sort of
Bottom Line Up Front: You need to have the tools and the wherewithal to fit these parts. If you do, they will actually function in their intended role (mostly). With surplus A1 sight sets either costing >$50 or simply unavailable, this is an okay alternative at less that half the cost. To be clear, however, it will not function in any usable way unless you fit the parts, especially the windage screw and flat spring. I managed to do it with sandpaper, a set of files, and a drill press (used as a poor man's lathe), which I'll hazard a guess and say is probably the absolute minimum as far as equipment needed to get this set working goes. If you don't do this fitting, as other reviews attest, things either won't fit together or will be so unbelievably tight as to turn this into a non-adjustable sight. For the flat spring, you really just need to flatten it a bit with a hammer or mallet, and then reduce the edges so it fits in it's spot in the upper. If you don't, it will press on the sight and screw so hard you either won't be able to install them at all, or won't be able to flip the apertures with anything less than a punch and hammer. The windage screw was the biggest job, however. Its diameter needed to be reduced where it goes through both holes in the carry handle to even fit into the upper. I also had to egg out the roll pin hole to allow the windage drum to sit further out. If you don't do this, it will squeeze the ears of the carry handle too tight and make adjusting the windage impossible using the tip of a bullet, which is kinda half the fun of an A1 sight. Anyway, given the relative value compared to what full milsurp sets are going for, I'd give the 3 stars if you already have the tools to fit it to your rifle. If you don't, it's a hard 1 star--I'd recommend instead plunking down for a real milsurp set that will go together with nothing more than a screw driver and a punch for the roll pin. Hopefully Brownell's will eventually start offering in-house sight sets of what they've been putting in their retro rifles, which hopefully would be a good compromise between this and $$$ milsurp sets.
3
Imprecise copy of the original
I've installed a half dozen A1 sights over the last 10 years or so, most of them Colt or Colt subcontractor sets pulled originally from scrapped A1 Rifles or NOS GI sets. They install without a hitch. I've also done two of these Luth AR's in the last year or so. The quality between the two is really apparent. The Luth AR's aren't as well made, the little leaf spring they provide has had to be (in both sets) crushed slightly just to allow the sight to go together, and then after that the tension it pushes on the aperture is ridiculously strong. After some oil and wear in it works, but it isn't as smooth as the GI sets. Overall, these will work, but expect it to put up a fight going in and in need of some fine tuning.
3
Good quality, wrong profile
These will do the trick but the sight profile is incorrect. the sights should be round but these are squared off at the base. Not accurate but they will do
3
Made it work but it wasnt easy
Tried to put this on my Brownells 601 upper... but it didnt want to work... not sure if this was because the upper wasnt made right, or the flat spring wasnt made right... so without knowing I have to be nuetral... The Flat spring curved too high, so the windage screw couldnt go through both holes. I had to hammer the flat spring down so the curve was lower (more flat), allowing the windage screw to pass through. But it wouldnt completely pass through both holes. I had to press down on the aperture site while I screwed the screw all the way through, so the windage screw head was flush with the upper. Without pushing down, on the aperature site, the windage screw could not move flush against the upper, which wouldnt allow the windage drum to align with the windage screw hole to pass the detent through... anyways !!!! Took me a while to figure this out but it finally worked. Wouldve rather bought one that worked, but in the end, it worked. My advice, find one that works, or make this work... but then again, maybe its the upper.
3
Functions Well But Shape Questionable
The sights work well. They install easy. But the outline of the apertures do not have the same shape as an original. These sights resemble the straight shape of the A2 0-2 sights rather than the circular shape of a true A1 sight. I'm not sure I would use them if a closer match is available.