Magpul MBUS Rear Sight - Black
Click Here for Price$46.79$55.05
The Magpul MBUS Back-Up Sight is a low-cost, color injection molded, folding back-up sight. Specifically tailored to the AR-15/M16 platform, the dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons.
- ~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius
- ~0.5 MOA (0.547"/100m) per click with a 20" sight radius
- Impact resistant polymer construction
- Spring-loaded flip up sight
- Detent and spring pressure keeps sight deployed
- Compatible with most Picatinny receiver rails
- Provides the same height-over-bore as standard A2 irons
- Protective wings shield the dual, same plane flip apertures
- Sight may be folded with either large or small aperture in position
- Detent knob easily and positively adjusts windage
- Height - Stowed: ~0.51”
- Center of aperture to top of rail: 1.42”
- Length - Stowed: 2.6”
- Length - Deployed: 1.5”
- Weight: 1.3 oz
Ratings & Reviews
Really good MBUS sight
by 206fts -
Pair this with the front one and you're all set!
by Bill -
Great sight. Easy to install and adjust. Was tight on the picatinny rail. Good price and really fast shipping. Primary Arms is awesome.
No issues at all like the roll pin coming loose
Dunno what the fuzz is all about the roll pin coming loose etc. but We have these on all our AR's with no issues at all and even my brothers units overseas use these and most of my friends have no issues at all.
Save your money
Same issue as previous reviews pins come out while firing. Happened to catch it before completely out but had to push it back in after every magazine the rest of the weekend.
IT'S TOSS UP
Picked up a pair of these and they worked looked and installed great. Only issue I had was after exactly 90 rounds of shooting the roll pins on both the front and rear sights started working their way out. I did catch them before fully coming out will have to put something like Loctite to keep them from coming out. Have not added Loctite yet to try it again. I got these due to price but for a few bucks more I will pay the extra and get Troy for my new build.
MBUS Gen2 Rear Sight
Quality Magpul rear sight
Best price and fast shipping on a solid backup.
Very well made and esy to install
Perfect in every way !
Affordable, quality, works as advertised !! I have Magpul MBUS on all 3 rifles. Primary Arms, great service !!!
Nice Backup Sights
I had been shopping around for a good price on these sights,and found it here at primary. They look really sharp under my scope with the low profile.
MBUS Rear Sight
by michael g.
Got two. Love them. On sale for $40 bucks! Primary you rock. Put them back on sale, I need another.
MagPul MBUS Gen 2 Sights
Awesome product from an awesome vendor! Sights came in great condition, well-wrapped, and in great time. Very happy and will be recommending Primary Arms to friends.
MagPul MBUS Gen 2 Flip-Up Rear Sight Black
Sturdy and lightweight.Quality I've come to expect from Magpul.
Shipping was Fast
Its MagPul, what else can I say. Shipping was very fast. I got lucky this item was on sale and I scored big time.
by John Reynolds
Great price. Great communication. Fast shipping. What more can I say? Thank youJohn
PA - great job, per usual :)
Shipped same day.$35 per unit/sight on sale.Shipping cost was $4.58 (USPS).It just doesn't get any better than this.
MagPul MBUS Gen 2 Flip-Up Rear Sight
by Thomas Connolly
Great product (and Service!).Have since bought(and received) both front and rear sights for AR-15 (300 Blackout).
Magpie rear sight. 5 star
by David Sanchez
Good looking sight and very well made on top of great service from Primary.
The mbus is great easy to deploy and to fold down out of optics way. Lightweight, durable, easy to site in, worth every penny.
MagPul MBUS Gen 2 Rear Sight
Could not ask for better service, order filled and delivered in no time.
Lightweight and looks great.
Mbus rear sight
I tried a couple of cheaper folding rear sights before getting this. The mbus is a great poly rear sight for the price. Folds flat, solid construction, typical magpul product that just plain works.
Not true iron sights but they are excellent for use as back up sights. Can't argue with the price either. Not recommended for primary sights but good for use as backup.
i really like this product locks up tight does not feel like plastic. best sight for the money. fastest shipping i have ever seen!
MagPul MBUS Gen 2 Flip-Up Rear Sight Black
by James Kiely
Received item in a timely manner and in perfect condition! I'll be doing business with P.A. in the future!