{"product_id":"magpul-mbus-rear-sight","title":"Magpul MBUS Rear Sight","description":"\u003ch2\u003eMagpul MBUS Rear Sight – Polymer Flip-Up Backup Iron Sight\u003c\/h2\u003e\u003cp\u003eThe Magpul MBUS (Magpul Back-Up Sight) Rear is a lightweight, polymer flip-up backup iron sight designed for AR-15 and MSR platforms. Spring-loaded for instant deployment, it folds flat when not in use to clear the way for your primary optic, then snaps up reliably when you need it. Adjustable for windage with a dual-aperture design — a large aperture for close-range and low-light use, and a smaller aperture for precision shooting.\u003c\/p\u003e\u003cp\u003eFits standard MIL-STD-1913 Picatinny and M-LOK compatible rails. Durable glass-filled nylon construction. Made in the USA.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Flip-up backup rear iron sight (BUIS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment:\u003c\/strong\u003e Windage adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApertures:\u003c\/strong\u003e Dual (large and small)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e MIL-STD-1913 Picatinny rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Glass-filled nylon polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable at \u003cstrong\u003eGlenwood Springs Outdoors, 831 Grand Ave, Glenwood Springs, CO\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Magpul","offers":[{"title":"MBUS 3 \/ Black","offer_id":53249124237678,"sku":null,"price":39.99,"currency_code":"USD","in_stock":true},{"title":"MBUS \/ Black","offer_id":53249124270446,"sku":null,"price":39.99,"currency_code":"USD","in_stock":true},{"title":"MBUS 3 \/ FDE","offer_id":53249127219566,"sku":null,"price":39.99,"currency_code":"USD","in_stock":true},{"title":"MBUS \/ FDE","offer_id":53249127252334,"sku":null,"price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0945\/1090\/7758\/files\/IMG-1596.jpg?v=1769626163","url":"https:\/\/www.glenwoodspringsoutdoors.com\/products\/magpul-mbus-rear-sight","provider":"Glenwood Springs Outdoors","version":"1.0","type":"link"}