Mission First Tactical BUPSWR Flip-Up Rear Sight Black

The Mission First Tactical BUPSWR is a polymer flip-up rear sight designed for AR-platform rifles and 1913 Picatinny rails. It uses a shrouded dual-peep aperture to protect the sight when stowed and to provide same-plane peep co-witness with most optics. Windage is adjustable via a screw; elevation is described by the manufacturer as adjustable with a flat head screwdriver. The sight is manufactured using a reinforced super-tough polyamide and is made in the USA.

Key Specifications

• The sight mounts to a 1913 Picatinny rail for standard AR-platform compatibility.
• Constructed from military-grade reinforced polyamide (polymer) for impact resistance.
• The design includes a shrouded aperture to shelter the peep from debris and impact damage.
• Features a dual peep, same plane aperture for straightforward co-witnessing.
• Windage adjustment is specified as 0.25 MOA in manufacturer data.
• Elevation adjustment is achieved with a flat head screwdriver per manufacturer guidance (described as “infinite” adjustment in some materials).
• The sight has a slim profile to sit under most magnifiers and optics.
• Can fold to the rear so the sight stows in the correct direction if dropped.
• Listed fit and compatibility: AR-15 platform.

Compact, durable, and purpose-built, the BUPSWR provides a low-profile backup aiming option that protects its aperture when stowed and presents a familiar sight picture when deployed. Its polymer construction keeps weight to a minimum while the shroud and folding design prioritize reliability and snag resistance in practical field use. For shooters seeking a rugged, low-profile rear backup sight with straightforward adjustments and co-witness capability, this Mission First Tactical unit is a reliable choice.