The MBUS (Magpul Back-Up Sight) is a low-cost, polymer, color injection molded folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform. Features- spring-loaded flip up sight easily activated from either side or by pressing the top, detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc; clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons and protective wings shield the dual, same plane flip apertures. Sight can still be folded with either large or small aperture in position. Detent knob easily and positively adjusts windage.Made in the USA.

Hanover Armory Return Policy

Hanover Armory will accept returns for up to 30 days from the date of purchase

on unused, unaltered, and unopened product. Returns must be accompanied

with a receipt. All merchandise will be inspected, and we reserve the right to

decline any return or exchange. Damaged or faulty merchandise will be replaced

with identical product or issued a store credit towards another product. If it is

deemed that the product is just not wanted, there will be a 10% restocking fee

deducted from the store credit.


Shipping Policy

All items will be shipped as soon as possible, typically within 2 business days, but

it can be longer depending on our workload. Due to regulatory laws we will only

ship to the United States. This does not include US territories. We typically ship

USPS, but sometimes may use a commercial carrier. If your location is limited to a

certain type of carrier, contact us before ordering at (410) 553-4845. We will not

ship to APO, FPO, or DPO addresses.


Some items are drop shipped and may need to be returned directly to the

manufacturer or distributor.

We are not responsible for lost or stolen packages. We are not responsible for

merchandise that was damaged in transit. If you would like a signature required

for delivery, or insurance on the package, please contact us a (410) 553-4845

prior to ordering. Additional charges will apply.


We are required to collect 6% Maryland sales tax for anything shipped to a

Maryland Address.


Most items are available for pickup at our physical address. Some items are drop

shipped directly from the manufacturer or distributor. Call first to check on

availability if you intend to pick up. All Federal, Maryland, and Anne Arundel

County laws are strictly adhered to at our location.


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Flat Dark Earth, Olive Drab Green, Black, Gray


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