Magpul MBUS Rear Sight - Flat Dark Earth
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
MagPul MBUS Gen 2 Flip-Up Rear Sight Dark Earth
by Mark Alcott
Again, solid fit and accurate. Easy to make adjustments.
As expected, it's magpul.
Awesome. Enough said.
All I want is what I got!
Best price I could find and quick shipping. Will definitely order again.
by Peter Fong
does what it's supposed to do. love the color.
by kory coleman
Easy installation with solid mount
Fast delivery. Great service.
by Eric Klepac
EASY to install. A no brainer. Good product.
Does the job
by Carl H.
Easy to install. Functions as it should. To bad there isn't a gas block rail front sight available.
by Devonson Martin
Excellent product and customer service!!!!
Go with MagPul.
by Patsy Collins
Fast shipping. Cheap prices and real time inventory.
Great Rear Sight
by Jonathan Mario
Flip-Up Rear Sight. MagPul did it again. Quick turn around as far as shipping.
by Josh Gonzalez
Good as always these sights really suprise me for the cost they are unmatched . If you have multiple guns then u know it gets expensive putting troys on all of them this is a great lower cost alternative.
by Rodney Todd
Good sight but primary sent me 2 rear sights, instead of 1 rear and one front like I ordered. Called them and they sent me a front sight in the wrong color that I ordered, I plan on painting my gun anyway so didn't bother calling them again, but it would be nice if my sight was already colored.
Good sights for the coast, would of spend more on the Pro/ or Troy sights if willing to spend 100 on one sight.
by Nicholas MacLarren
Got this in a timely manner and attaching it is simple. Makes for a nice set of back up sights.
by Ryan Nicholas
Great cheap sights.
MagPul MBUS Rear Sight
by Lyle Walker
Great product at a reasonable price. Fast shipping.
magpul flip sight
by jeff Harrison
Great product, good cost and fast shipping. ......
by Rusty C.
Great product. Good quality. 2nd AR build with this sight.
by zachary taylor
Great sight and a great value
MagPul MBUS Gen 2 Flip-up Rear Sight Dark Earth
Haven't installed it yet, looking forward to getting put on my FDE AR. Primary Arms was excellent with their service. Fast shipping, quick response and they were one of the few that had the sight in stock.. Thanks
Solid Backup sight
by Joseph Matthews
I have this in black on my AR and it has been a great backup sight. Needed it in DE for a birthday build for a friend. Several sight picture options depending on light and range and easy windage adjustment. Tight fit on the flat top but easy to position behind a red dot or reflex. Must have for any AR.
Great back-up sight
I love Magpul's back-up sights. They are light and reliable. I run these on all of my AR-style rifles.
Pop up site
by steve lewis
I love these sites! Pop up pop down, they hold zero on my ar. When down I have no problem with mounting a scope. I've had them on my 1st ar for a few years and still working great.