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Geissele Automatics 05 470B Super Precision MRO Optic Mount Lower 1 3 Height Black Anodized UPC 817953020678
Product Description
The Geissele Automatics® Super Precision MRO Optic Mount in Lower 1/3 Co-Witness height (SKU: 05-470B / UPC: 817953020678) is engineered to deliver maximum return-to-zero repeatability and battle-proven structural rigidity for the Trijicon® Miniature Rifle Optic (MRO). Designed for duty carbines, patrol rifles, and hard-use defensive platforms, this mount eliminates shift under severe recoil, barrier impacts, and rough handling.
Precision CNC-machined from a single solid billet of 7075-T6 aircraft-grade aluminum, the 05-470B features a Type III Hardcoat Anodized matte black finish that resists galling, surface abrasion, and exposure to harsh cleaning solvents. Unlike quick-detach lever mounts that can loosen or mar receiver rails, Geissele's updated classic nut-and-bolt clamping mechanism generates approximately 1,400 pounds of clamping force across the MIL-STD-1913 Picatinny rail, locking the mount solidly in place while spanning maximum rail surface area.
Positioned at a 1.54-inch Lower 1/3 Co-Witness optical centerline, the mount places your backup iron sights cleanly in the lower third of the MRO viewing window, keeping the primary reticle field unobstructed for rapid target acquisition. Three integral recoil shear lugs machined directly into the underside engage the Picatinny cross-slots to completely arrest fore-and-aft movement under heavy firing schedules.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct fit for Trijicon MRO, MRO Patrol, and MRO HD red dot sights (and optics utilizing the exact Trijicon MRO bottom mounting footprint) mounted onto MIL-STD-1913 Picatinny rails. CRITICAL WARNING: Will NOT fit Aimpoint Micro T-1/T-2/CompM5 footprints or Trijicon RMR optics. Torque the four MRO-to-mount fasteners to 15–18 in-lbs with a drop of medium-strength blue threadlocker (Loctite 242/243). Torque the main Picatinny rail clamp nut to 65 in-lbs using a 1/2-inch socket or wrench—do not over-torque.
- Ensure the host rifle is completely clear, magazine removed, and chamber visually and physically verified empty before beginning installation.
- Degrease the Trijicon MRO mounting boss, the four optic mounting screws, and the upper receiver MIL-STD-1913 Picatinny rail slots with isopropyl alcohol or acetone.
- Seat the Trijicon MRO onto the Geissele 05-470B boss, apply blue threadlocker to the four optic screws, and torque evenly in a cross-pattern to 15–18 in-lbs.
- Place the mount onto the upper receiver Picatinny rail, push the mount forward so all three integral recoil lugs bear solidly against the front walls of the Picatinny slots, and torque the main clamp nut to 65 in-lbs.
- Apply witness marks across the clamp nut and optic screws with a paint pen, then confirm mechanical zero and backup iron sight lower 1/3 co-witness alignment on the range.
Key Features
- 7075-T6 Billet Aluminum Construction: CNC-machined from a single solid block of high-strength 7075-T6 aluminum for superior rigidity and zero flex under heavy recoil.
- 1,400 lbs Picatinny Clamping Force: Geissele's proprietary nut-and-bolt clamp design delivers massive, uniform rail engagement for rock-solid return-to-zero performance.
- Three Integral Recoil Shear Lugs: Machined directly into the mount base to engage multiple Picatinny cross-slots and prevent forward shift during rapid firing strings.
- Lower 1/3 Co-Witness Height (1.54"): Optimizes heads-up shooting posture while keeping standard AR-15 backup iron sights neatly aligned in the lower third of the optic window.
- Type III Hardcoat Anodized Finish: Matte black MIL-A-8625 Type III Class 2 anodizing provides extreme durability against wear, corrosion, and tactical abrasion.
Product Specifications
- Brand: Geissele Automatics®
- Model/Series: Super Precision MRO Optic Mount
- MPN / SKU: 05-470B / 05470B
- UPC: 817953020678
- Optic Footprint Compatibility: Trijicon® MRO / MRO Patrol / MRO HD
- Mount Height: Lower 1/3 Co-Witness (1.54" Optical Centerline)
- Rail Interface: MIL-STD-1913 Picatinny (Nut & Bolt Clamp, 3 Shear Lugs)
- Material & Finish: 7075-T6 Aluminum / Type III Hardcoat Anodized Matte Black
- Clamp Torque Spec: 65 in-lbs (Rail Clamp Nut) / 15–18 in-lbs (Optic Screws)
- Country of Origin: United States
