Summer Cleanout Sale!
Huge Savings On 2000+ Items From 200+ Brands - SHOP NOW

Daily Deal: Brownells Short Canvas Shop Apron ~~$29.99~~ $19.99- Get Yours!

AR-15 A1.5 BACKUP REAR SIGHT Reviews & Ratings

The lightweight, streamlined design of the Daniel Defense A1.5 Fixed Rear Sight makes it the optimum back up iron sight for shooters using today’s most popular reflex optics. Its well thought out design does not impede the use of the charging handle on M4 type rifles. The one piece design makes it easy to install to any Military Specification flattop upper receiver and the sight is secured to the upper using a slotted fastener which is threaded into a self-locking steel thread insert.

Machined from 6061 aircraft grade aluminum and Military Specification Hard Coat Anodized, our Fixed Back Up Iron Sight is both lightweight and durable. The lightweight, streamlined design of the Daniel Defense A1.5 Fixed Rear Sight makes it the optimum back up iron sight for shooters using today’s most popular reflex optics. Its well thought out design does not impede the use of the charging handle on M4 type rifles. The one piece design makes it easy to install to any Military Specification flattop upper receiver and the sight is secured to the upper using a slotted fastener which is threaded into a self-locking steel thread insert. (3.5cm) long, (3.2cm) wide, (4.1cm) high from top of receiver rail to top of sight housing. 1.7 oz.

See all of our AR15s and AR15 parts here.

View Product

Write a review

5 Stars

91%

4 Stars

3 Stars

2 Stars

1 Stars

Reviews Summary

Overall, the AR-15 A1.5 Backup Rear Sight receives high praise for its durability, quality, and ease of use, especially for short-barreled carbines. While users appreciate its performance and accuracy, some minor concerns have been raised regarding windage adjustments and aperture quality. Many consider it a solid investment for reliable shooting.

What Reviewers Are Saying

Product Quality

85%

Reviewers consistently highlight the exceptional quality of the AR-15 A1.5 rear sight, noting its durability, accuracy, and American manufacturing standards. The sight performs well for various shooting needs, making it a trusted choice among users.

Ease of Use

70%

Many customers mention the sight's straightforward design, allowing for quick setup and adjustments. This ease of use benefits novice and experienced shooters alike, contributing to an overall positive user experience.

Adjustments

50%

While most users find the sight easy to sight in, some express frustration with the windage adjustment mechanism. Complaints include the difficulty in rotating the adjustment dial and concerns over screw quality affecting the adjustments.

Versatility

60%

The rear sight's compatibility with various setups, including co-witnessing with red dot sights, is frequently mentioned. Customers appreciate its effectiveness both as a standalone sight and in combination with other optics.

Value for Money

80%

Reviewers believe the sight offers a great balance of performance and pricing, viewing it as a valuable purchase. The general consensus is that it provides excellent functionality without breaking the bank.

Aperture Concerns

30%

A few reviewers express dissatisfaction with the quality of the aperture, noting inconsistencies across units. While some accept this as a minor concern, others feel it could be improved for better performance.

Sort by Filter by rating

Sturdy Reliable Alignment

This Rear Sight is perfect for shorter Barreled carbines where a folding rear sight is not necessary. Allows use of Red Dot Sights, and since it uses a common E2 rear sight flip up style aperature, can also be replaced with ine with Tritium inserts for low light use.

by WILLARD JAMES on January 14, 2024

Verified Purchase

Was this review helpful? 0

My pick for backup irons

Ive been using this sights about 8 years now no problem durable and always ready

Back up rear sight

Perfect sight for the money and daniel defense quality. Fit was perfect.

Makes a good duty sight.

Use this sight on my C8A3 and couldn't be happier.

Great Sight

This Sight incorporated the simplicity of the A1 sight with an A2 aperture. Quality piece.

Best BUIS for the Money

This product is great either stand alone or as a co-witness to an Aimpoint or EOTech. Enuff said.

The ultimate K.I.S.S. sight !

My RRA M4 build is based on reliability for the long haul. At 58 my eyes also need consideration. I find this sight to be built like a tank but low in weight. First impression is the larger aperature is more help than previous sights rings. This sight is not compromised by traveling in my soft case as previous other sights have done. I bought a 2 sided tool that is small on one end to adjust the front sight pin and larger at the other end for adjusting the aperature and both make life easier. Sight was easy to sight in and has remained "locked" in position. My red dot is set to lower 1/3rd co-witness so I dont need to flip up, flip down, flip up... I simply look over the ring with head up for quicker acquisitions. I have finally found a rear sight I can trust and like to use. Thumbs up !

Best Fixed Iron Sight for the Money

Highly Accurate right out of the box. Solid and American made, just mount this sight on your flat top and go shooting. My only complaint is that the A1 style dial is hard to rotate, but not much windage adjustment is needed, just set sight one click right or left and leave it. The DD A1.5 sight also has a notch in it so that it can be returned to zero after being adjusted. This sight is the best out of many simillarly priced fixed and adjustable iron sights.

Very good sight

Excellent "iron" sight. Fit/function perfect

good backup rear sight

i got both front and rear sight by daniel defence. Great product for the price. can not go wrong