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Magpul MBUS Gen 2 Flip-Up Sight Set on a AR-15

AI illustration of a similar part on the gun.

AR-15 · Optic or sights

Magpul MBUS Gen 2 Flip-Up Sight Set

$90

Build with this part

Opens the builder with this part fitted. Other parts change only if they have to.

Specs

Typeiron sights (flip-up BUIS)
MountPicatinny clamp; front needs handguard top rail

Pros and cons

Pros
  • Light polymer, 2.5 oz for the pair
  • Same height as A2 irons for co-witness
  • Spring-loaded, stay up until folded
Cons
  • Polymer is less rigid than aluminum BUIS
  • Front can't mount on a hot gas block rail

Other optic or sights options