--- product_id: 1836888 title: "Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight" brand: "magpul" price: "€ 76.27" currency: EUR in_stock: true reviews_count: 9 category: "Magpul" url: https://www.desertcart.hr/products/1836888-magpul-mbus-flip-up-backup-sights-black-rear-sight store_origin: HR region: Croatia --- # Less than 1 MOA shift Spring-loaded flip-up Impact-resistant polymer Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight **Brand:** magpul **Price:** € 76.27 **Availability:** βœ… In Stock ## Summary > πŸ”« Ready When You Are: The Backup Sight That Never Quits ## Quick Answers - **What is this?** Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight by magpul - **How much does it cost?** € 76.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/1836888-magpul-mbus-flip-up-backup-sights-black-rear-sight) ## Best For - magpul enthusiasts ## Why This Product - Trusted magpul brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Instant Deployment πŸ”„:** Spring-assisted flip-up mechanism activates effortlessly from either side or the top for rapid target acquisition. - β€’ **Precision Retention 🎯:** Maintains point-of-impact with less than 1 MOA shift even after multiple 5-foot concrete dropsβ€”battle-tested reliability. - β€’ **Universal Compatibility πŸ”—:** Clamps securely to any MIL-STD-1913 Picatinny or STANAG 4694 rail, matching standard A2 iron sight height for seamless co-witnessing. - β€’ **Unmatched Durability πŸ›‘οΈ:** Engineered from impact-resistant polymer to survive harsh drops and operational abuse without losing zero. - β€’ **Tool-Friendly Adjustments πŸ› οΈ:** Includes elevation adjustment tool compatible with most aftermarket A2 front sight tools, ensuring quick zeroing in the field. ## Overview The Magpul MBUS Flip-Up Backup Rear Sight is a lightweight, polymer-constructed tactical sight designed for AR15/M16 platforms. It features a spring-loaded flip-up design for rapid deployment, universal Picatinny rail compatibility, and superior impact resistance proven to maintain zero with less than 1 MOA shift after rigorous drop tests. Ideal for professionals seeking a reliable, durable backup optic that blends seamlessly with red dot sights and standard iron sights. ## Description Reliable Backup for Battery Failures: The Magpul MBUS Front Back-Up Sight Gen 2 is a low-profile, adaptable sight designed for AR15/M16 platforms. It automatically deploys with minimal pressure and offers adjustable elevation for 1/3 co-witness with red dot sights. Crafted from impact-resistant polymer, it withstands harsh conditions and is compatible with most Picatinny-railed handguards, providing the same height-over-bore as standard A2 irons. It's a dependable backup sight for tactical or emergency situations. Review: Great Sight for the money! - These sights are wonderful, some people say Troy are better and I do not disagree that troy are quality back up sights. But magpul are cost effective and in a drop test they seemed more durable than Diamondhead/Troy. Not only did they retain zero better than the others, but they seemed to handle impact better than metal. Taken from an article on KitUp "In order to test whether certain popular BUIS would still be serviceable after taking a hard hit, I attached three different types of BUIS - Troy Industries, Magpul Industries and Diamondhead USA - to an AR-15 rifle chambered in .300 AAC Blackout weighing 7 pounds and dropped the rifle upside down from a height of 5 feet onto a concrete surface. Other portions of the rifle were protected from damage, and each set of BUIS took a solid hit from the drop. The ammunition used was Remington Premier Match .300 AAC Blackout 125 gr OTM. Each sighting device was installed according to the manufacturer's instructions, then points of impact was established from a stable shooting position at 25 and 200 yards. After the drop, the rifle was fired again, and any change in point of impact noted. The first BUIS dropped was the Diamondhead. At first, damage appeared cosmetic only; however, the apertures could no longer be rotated, windage could not be adjusted, and there was a definite cant to the BUIS. Point of impact shifted approximately 16 MOA. We contacted Diamondhead with this result. They replied that a newer version was available which was more durable. We offered to test the new model but production issues meant they could not ship one to us. Next came the Troy sight. Cosmetic damage was apparent, but the sight could still be operated normally. Point of impact shift was approximately 3 MOA. The last set of BUIS was the Magpul MBUS. Damage was purely cosmetic and the sight remained fully functional. Point of impact shift was less than 1 MOA. Unlike the other sighting devices, a second drop was performed. Results did not change, and the sight remained functional." Now my personal experience with these is on my M&P15-22 but I'm ordering an additional MBUS for the AR I am building. They are really good quality, just make sure you don't get a PTS sight from a bad retailer. Review: Expected quality. - Quality I expected. Spring assist opening. Three points of contact to deploy sight is convenient. One on each side then one on top. ## Features - Impact resistant polymer construction provides light weight and resists operational abuse - 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 most any MIL-STD-1913 Picatinny/STANAG 4694 rail and provides the same height-over-bore as standard A2 irons - Protective wings shield the spring-locking A2 front sight post; Elevation adjustment tool included, but most aftermarket A2 front sight adjustment tools may be used as well ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004RR0N8Q | | Best Sellers Rank | #8,602 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #8 in Airsoft Gun Sights | | Brand | Magpul | | Brand Name | Magpul | | Color | Black | | Compatible Devices | Rifle | | Country of Origin | United States | | Customer Reviews | 4.8 4.8 out of 5 stars (8,641) | | Date First Available | March 6, 2011 | | Global Trade Identification Number | 00873750004358 | | Hand Orientation | Rear | | Included Components | Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight | | Item Dimensions LxWxH | 7.5 x 1 x 4.25 inches | | Item Display Dimensions | 7.75 inches | | Item Package Dimensions L x W x H | 6.5 x 3.98 x 1.18 inches | | Item Weight | 1.44 ounces | | Magnification Minimum | 1 x | | Manufacturer | Magpul | | Material | polymer or aluminum | | Model Name | MBUS Flip-Up Backup Sights | | Model Year | 2012 | | Mounting Type | Picatinny rail mount | | Night vision | No | | Number of Items | 1 | | Package Weight | 0.04 Kilograms | | Part Number | MAG248-BLK | | Product Dimensions | 4"L x 6.6"W x 1.2"H | | Reticle Type | Crosshair | | Size | Rear Sight | | Sport | Hunting | | Style | Rear Sight | | Suggested Users | unisex-adult | | Team Name | Magpul | | Thread Type | Picatinny | | UPC | 711091345887 789632564127 757183089864 873750004358 | | Warranty Description | Limited lifetime warranty | | Weight | 2 Pounds | ## Product Details - **Brand:** Magpul - **Color:** Black - **Compatible Devices:** Rifle - **Item Weight:** 1.44 ounces - **Magnification Minimum:** 1 x - **Material:** polymer or aluminum - **Mounting Type:** Picatinny rail mount - **Product Dimensions:** 4"L x 6.6"W x 1.2"H - **Sport:** Hunting - **Style:** Rear Sight ## Images ![Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight - Image 1](https://m.media-amazon.com/images/I/61O58zntAjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Sight for the money! *by S***8 on August 10, 2013* These sights are wonderful, some people say Troy are better and I do not disagree that troy are quality back up sights. But magpul are cost effective and in a drop test they seemed more durable than Diamondhead/Troy. Not only did they retain zero better than the others, but they seemed to handle impact better than metal. Taken from an article on KitUp "In order to test whether certain popular BUIS would still be serviceable after taking a hard hit, I attached three different types of BUIS - Troy Industries, Magpul Industries and Diamondhead USA - to an AR-15 rifle chambered in .300 AAC Blackout weighing 7 pounds and dropped the rifle upside down from a height of 5 feet onto a concrete surface. Other portions of the rifle were protected from damage, and each set of BUIS took a solid hit from the drop. The ammunition used was Remington Premier Match .300 AAC Blackout 125 gr OTM. Each sighting device was installed according to the manufacturer's instructions, then points of impact was established from a stable shooting position at 25 and 200 yards. After the drop, the rifle was fired again, and any change in point of impact noted. The first BUIS dropped was the Diamondhead. At first, damage appeared cosmetic only; however, the apertures could no longer be rotated, windage could not be adjusted, and there was a definite cant to the BUIS. Point of impact shifted approximately 16 MOA. We contacted Diamondhead with this result. They replied that a newer version was available which was more durable. We offered to test the new model but production issues meant they could not ship one to us. Next came the Troy sight. Cosmetic damage was apparent, but the sight could still be operated normally. Point of impact shift was approximately 3 MOA. The last set of BUIS was the Magpul MBUS. Damage was purely cosmetic and the sight remained fully functional. Point of impact shift was less than 1 MOA. Unlike the other sighting devices, a second drop was performed. Results did not change, and the sight remained functional." Now my personal experience with these is on my M&P15-22 but I'm ordering an additional MBUS for the AR I am building. They are really good quality, just make sure you don't get a PTS sight from a bad retailer. ### ⭐⭐⭐⭐⭐ Expected quality. *by C***. on December 29, 2025* Quality I expected. Spring assist opening. Three points of contact to deploy sight is convenient. One on each side then one on top. ### ⭐⭐⭐⭐⭐ Wouldn't hesitate to buy another *by M***N on March 19, 2014* I love this sight to death. It's so tight to put on the rail I had to apply lube to the rail itself, tight tolerances are a good sign of quality manufacture. Feels solid, not flimsy or wobbly. Spring retention ensures that after each shot it returns to zero. Also, the square top of the sighting ring makes obtaining accurate aim faster. I have an A3 type rifle, and the standard A2 front sight with it's dog ears protecting the front sight blade: point directly to the squared edges of this rear sight's peep ring. Which actually makes acquiring the target seem easier and faster than if it were a perfect circle rear sight ring. Maybe it's psycho somatic where it's purely me, but it quite honestly seems faster on target than metallic orb rear peeps. the square top of the sight ring, purely objectively to me at least, seems to aid in my finding the center with the front sight blade because the dog ears protecting the blade have an extra frame of reference by branching off towards the square radii left and right of the rear peep. Could be my imagination: but I love this thing. It's solid, tight, retains zero, folds -REALLY- low (which is great) and what I like most: super light weight. I don't like quad rails and hanging off 5 pounds of junk on my rifles. I don't put anything on one of my rifles unless the added capability the accessory brings justifies the weight it brings. I like an Ar-15 carbine to be light and fast, transition target to target quickly. I wouldn't hesitate to put one of these on any pic rail that needs a backup rear. Be it a full fledged A3/A4 combat rifle or a $5k race gun that has to have a rear sight to qualify for a division or specific course of fire. Fits tight, holds zero and weighs next to nothing: you can't go wrong with one of these. I have -NOT- had hands on experience with the mbus II FRONT sight, only the rear: so I cannot offer an informed opinion about the mbus front sight. I can say with relative confidence, I have a high opinion of magpul products in general and if the front sight is of equal quality to their rear sight - I wouldn't hesitate to use that either. I cannot however, give first hand account of what the front sight is like. I can say that -MY- mbus II rear sight is terrific, and that it's my go to choice for any pici-rail gun platform that's in need of a backup rear. ## Frequently Bought Together - Magpul MBUS Flip-Up Backup Sights, Black, Rear Sight - Magpul QD Sling Swivel - Magpul MS1 Two-Point Quick-Adjust Sling --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/1836888-magpul-mbus-flip-up-backup-sights-black-rear-sight](https://www.desertcart.hr/products/1836888-magpul-mbus-flip-up-backup-sights-black-rear-sight) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*