{"product_id":"magpul-mbus-pro-lr-adjustable-rear-sight-mag527","title":"Magpul MBUS Pro LR Adjustable Rear Sight for AR-15\/M4","description":"\u003cp\u003eThe Magpul MBUS Pro LR is an all-steel adjustable rear backup iron sight for AR-15 and M4 rifles, clamping to any 1913 Picatinny top rail.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA rear sight that thinks in ranges — the MBUS Pro LR adds calibrated, tool-less elevation to all-steel reliability.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Magpul MBUS Pro LR Adjustable Rear Sight (MAG527) is the long-range thinker of the MBUS Pro family. Its elevation-adjustable aperture system is calibrated for extended distances, letting you dial for range with your fingers — no tools, no guesswork — while the dual apertures still cover fast close work and precise deliberate fire. If your irons are more than a formality, this is the rear sight that earns the rail space.\u003c\/p\u003e\u003cp\u003eConstruction is machined steel throughout with a corrosion-resistant finish. Folded, it keeps the trademark MBUS Pro low profile; deployed, it locks up solid, adjusts positively and holds its settings through recoil and rough handling.\u003c\/p\u003e\u003ch3\u003eWhy shooters choose the MBUS Pro LR\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated elevation adjustment\u003c\/strong\u003e — dial for distance, tool-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual apertures\u003c\/strong\u003e — speed up close, precision at range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-less windage\u003c\/strong\u003e — full zeroing with your fingertips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-steel construction\u003c\/strong\u003e — settings that survive hard use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile fold\u003c\/strong\u003e — clean under optics like every MBUS Pro\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat the MBUS Pro LR fits\u003c\/h3\u003e\u003cp\u003eFits 1913 Picatinny top rails on AR-15\/M4 pattern rifles, mounted at the rear position, and pairs with any MBUS Pro front sight. You will need clear rail at the rear of the receiver behind your optic mount, and front and rear should sit on the same rail plane. Zero at your base distance, then use the calibrated elevation for everything beyond it.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003ctd\u003eAR-15 \/ M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAdjustable dual-aperture rear sight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMount interface\u003c\/th\u003e\n\u003ctd\u003e1913 Picatinny top rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdjustment\u003c\/th\u003e\n\u003ctd\u003eTool-less calibrated elevation \u0026amp; windage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMagpul Industries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003eMAG527\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eIrons with real reach. \u003cstrong\u003eOrder the MBUS Pro LR today\u003c\/strong\u003e — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExplore more:\u003c\/strong\u003e \u003ca href=\"\/collections\/iron-sights-backup-sights\"\u003eIron Sights \u0026amp; Backup Sights\u003c\/a\u003e, \u003ca href=\"\/collections\/ar-15-parts-accessories\"\u003eAR-15 Parts\u003c\/a\u003e or browse all \u003ca href=\"\/collections\/magpul-industries\"\u003eMagpul\u003c\/a\u003e.\u003c\/p\u003e","brand":"Magpul Industries","offers":[{"title":"Default Title","offer_id":60873786687822,"sku":"MAG527","price":145.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1081\/3223\/7646\/files\/magpul-mbus-pro-lr-adjustable-rear-sight-mag527-1.jpg?v=1789881024","url":"https:\/\/onyxarmaments.co.uk\/products\/magpul-mbus-pro-lr-adjustable-rear-sight-mag527","provider":"Onyx Armaments","version":"1.0","type":"link"}