The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding
The MBUS Front Sight is adjustable for elevation and fits all
mil-spec 1913 Picatinny rail equipped weapons, but is specifically tailored to
the AR15/M16/M4 platform.
The product-improved Gen 2 MBUS Front Sight features a slimmer
profile for greater optics compatibility when in the folded position,
while the front sight post now incorporates a spring lock for consistent
Made in U.S.A.
- Impact resistant polymer construction provides light weight and resists
- Spring-loaded flip up sight easily activated from either side or by pressing
- Detent and spring pressure keeps sight erect but allows for unobstructed
folding under impact, etc.
- Clamps to any standard mil-spec 1913 Picatinny railed hand guard and
provides the same height-over-bore as standard A2 irons
- Protective wings shield the standard A2 front sight post
NOTE: Cannot be mounted to a railed gas block due to excess heat
issues. Front MBUS must be mounted to a railed fore end on the same plane as the