Magpul MBUS Sights & Backup Iron Sights

Back up your optic with Magpul MBUS sights from Onyx Armaments. Our range covers the lightweight polymer MBUS 3 front and rear flip-up sights and the rugged all-steel MBUS Pro series — including front, rear, 45° offset and long-range adjustable models.

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Magpul MBUS Sights & Backup Iron Sights, explained.

Every sight folds flat to co-witness under your optic and deploys in an instant when you need it. From a budget backup to a sight tough enough to run as a primary, these AR-15 backup iron sights hold zero through hard use. £5 tracked UK delivery in 7–10 business days.

MBUS 3 or MBUS Pro? Read our full MBUS 3 vs MBUS Pro comparison — polymer vs steel, weight, co-witness and price.

Explore more: all Iron Sights & Backup Sights, more AR-15 Parts & Accessories, or browse all Magpul.