{"product_id":"magpul-mbus-flip-up-backup-rear-sight-black-durable-backup-iron","title":"Magpul MBUS Flip-Up Backup Rear Sight, Black - Durable Backup Iron","description":"\u003cp\u003eIn this review the Magpul MBUS Flip-Up Backup Rear Sight is examined for shooters who need a reliable, low-weight iron sight as a backup to optics. The single biggest reason to buy is its combination of impact resistant polymer construction and a secure, spring-loaded flip mechanism that keeps the sight up when needed and folded when not. Installation is straightforward and it clamps to MIL-STD-1913 Picatinny\/STANAG 4694 rails, making it a practical choice for patrol rifles, range guns, or anyone who values a durable, quick-deploying rear sight.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact resistant polymer:\u003c\/strong\u003e Provides a lightweight but tough body that resists operational abuse and reduces overall carry weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring-loaded flip action:\u003c\/strong\u003e Allows the sight to be deployed easily from either side or by pressing the top for fast, one-handed operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive detent and spring pressure:\u003c\/strong\u003e Keeps the sight erect under normal use while permitting unobstructed folding if struck by an impact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePicatinny\/STANAG clamp:\u003c\/strong\u003e Clamps to most MIL-STD-1913 Picatinny or STANAG 4694 rails for broad compatibility across modern rifles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight-over-bore match:\u003c\/strong\u003e Provides the same height-over-bore as standard A2 irons for co-witnessing with standard sights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes elevation tool:\u003c\/strong\u003e Ships with an elevation adjustment tool while remaining compatible with many aftermarket A2 adjustment tools for easy tuning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis rear sight suits shooters who run optics but want a robust backup iron that installs quickly and stays out of the way until needed. It is a strong choice for carriers, small-unit shooters, and recreational users who appreciate solid build quality and snapability that holds up under rough handling.\u003c\/p\u003e\n\u003cp\u003eShooter who need metal sights for extreme longevity or who require integrated night sight options should look elsewhere; this polymer MBUS unit is optimized for light weight and impact resilience rather than heavy steel construction or luminous inserts.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDependable build quality gives a secure mounting and feels durable in field use.\u003c\/li\u003e\n\u003cli\u003eEasy to install and adjust, with included elevation tool and compatibility with common A2 tools.\u003c\/li\u003e\n\u003cli\u003ePositive snapability and spring detent keep the sight locked up or down reliably during operation.\u003c\/li\u003e\n\u003cli\u003eLightweight polymer construction reduces weight without sacrificing functionality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo integrated night sight or tritium option included; intended as a daylight backup rather than a primary sight for low-light use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMagpul\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMBUS Flip-Up Rear Sight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eImpact resistant polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eMIL-STD-1913 Picatinny \/ STANAG 4694 clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight over bore\u003c\/td\u003e\n\u003ctd\u003eSame as standard A2 irons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003eElevation tool included; compatible with aftermarket A2 tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Magpul MBUS Flip-Up Rear Sight is a practical, well-made backup sight that delivers consistent performance and easy integration on Picatinny rails. It is a smart buy for shooters who want a lightweight, reliable iron sight with strong snapability and solid build quality, and it represents good value for anyone who needs a dependable backup to their optic in daylight conditions.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this sight mount on my Picatinny rail?\u003c\/strong\u003e\u003cbr\u003eYes, it clamps to MIL-STD-1913 Picatinny and STANAG 4694 rails and provides standard A2 height-over-bore.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an elevation tool provided?\u003c\/strong\u003e\u003cbr\u003eYes, an elevation adjustment tool is included and most aftermarket A2 tools will also work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this sight suitable for low-light use?\u003c\/strong\u003e\u003cbr\u003eNo, this unit is a polymer daylight backup sight and does not include tritium or luminous inserts.\u003c\/p\u003e","brand":"Magpul","offers":[{"title":"Default Title","offer_id":48608089506011,"sku":"B00JSYGS2I","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61QaQ5WJf5L._AC_SL1500.jpg?v=1778502202","url":"https:\/\/gearmusthave.com\/products\/magpul-mbus-flip-up-backup-rear-sight-black-durable-backup-iron","provider":"GearMustHave","version":"1.0","type":"link"}