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MaTech BUIS Mil-Spec Flip-Up Rear Iron Sight Picatinny Rail Ranging Aperture
When your primary optic fails, you need a rear sight that deploys instantly and holds zero. The MaTech BUIS is a mil-spec flip-up rear iron sight engineered to MIL-SPEC standards, featuring a calibrated ranging aperture and one-touch spring-loaded deployment. Designed for Picatinny-railed platforms, its matte black, low-glare construction minimizes light reflection so your sight picture stays clean in any lighting condition.
Key Features
- Picatinny Rail Compatible — Mounts directly to any MIL-STD-1913 Picatinny rail without adapters or modifications, providing a secure, repeatable fit on virtually any modern rifle platform.
- MIL-SPEC Construction — Built to strict military specifications for durability and repeatable zero retention, ensuring reliable performance under demanding field conditions.
- One-Touch Flip-Up Aperture — Deploys instantly with a single touch so you can transition to iron sights without fumbling or losing time when it matters most.
- Ranging Aperture — Dual-aperture design includes a calibrated ranging aperture for improved target acquisition at varying distances, giving you more capability than a standard peep sight.
- Extremely Low Reflective Signature — Matte black finish and low-glare construction minimize light reflection, keeping your sight picture clean and reducing your visual signature in the field.
Compatibility
Specifications
| Brand | MaTech Solutions |
| MPN | BUIS |
| Color | Black |
| Condition | New |
| Model | Back Up Iron Sight |
| Type | Iron Sight |
| Sight Position | Rear Only |
| Illumination | None - Passive |
| Mounting | Picatinny |
| Mounting Location | Rail |
| For Gun Type | Rifle |
| Features | Flip-Up, Ranging Aperture, Low-Profile |
| Sport/Activity | Shooting |
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