Sightmark SM34019 Tactical 30mm Fixed Cantilever Scope Mount SM34019 UPC 812495024887
Product Description
The Sightmark Tactical 30mm Fixed Cantilever Scope Mount (SM34019) is a heavy-duty, monolithic optic mounting platform engineered specifically for AR-15 and modern sporting rifle platforms. Featuring a 2-inch forward offset cantilever extension, this mount projects the riflescope forward to ensure proper eye relief and full field-of-view acquisition when shooting with collapsible carbine stocks or modern tactical cheek welds.
Precision-machined from 6061-T6 aircraft-grade aluminum and treated with a non-reflective matte black anodized coating, the SM34019 provides rigid structural integrity while keeping added rail weight to a minimum. The integrated 30mm scope rings place the optic centerline at a comfortable 1.5-inch AR height above the rail, allowing seamless clearance for objective lenses up to 56mm while maintaining co-witness capabilities with backup iron sights.
Equipped with dual heavy-duty Picatinny cross-bolts and semi-permanent locking rail clamps, the Sightmark Tactical Cantilever Mount secures firmly onto standard MIL-STD-1913 Picatinny rails. Built to withstand heavy recoil impulses from .223/5.56, .308 Win, and high-velocity hunting calibers, it guarantees return-to-zero confidence and long-term zero retention in rugged field conditions. Best of all, it is protected by Sightmark's Lifetime Warranty.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits 30mm maintube riflescopes and mounts directly onto standard MIL-STD-1913 Picatinny receiver rails. Ideal for LPVOs (Low Power Variable Optics) and long-range scopes on AR-15 and AR-10 receivers.
- Perform a complete firearm safety check: drop the magazine, pull the charging handle rearward, and visually inspect the chamber to verify zero live rounds are present.
- Clean the upper receiver Picatinny rail and lower mount contact interfaces with a light degreaser.
- Place the cantilever mount onto the receiver rail, pushing it forward into the rail slots toward the muzzle to seat the cross-bolts against the rail recoil lugs before tightening.
- Torque the lower base cross-bolts to 35–40 in-lbs using an armorer's torque driver.
- Set your 30mm scope tube into the lower ring cradles, attach the upper ring caps, and loosely start the ring cap screws.
- Adjust optic position for proper eye relief and use a leveling tool to ensure the reticle is vertically plumb before cross-pattern torqueing ring cap screws to 15–18 in-lbs.
Key Features
- 2-Inch Forward Cantilever Offset: Shifts scope placement forward on flat-top AR receivers to maintain correct eye relief and comfortable head positioning.
- Aircraft-Grade 6061-T6 Aluminum: Lightweight yet ultra-durable precision CNC construction resists flex and heavy operational recoil.
- 1.5-Inch Centerline Height: Standard AR height places the optic core in optimal alignment for natural cheek welds and backup iron sight clearance.
- Dual Recoil Locking Lug Clamp: Dual heavy-duty cross-bolts lock securely into Picatinny slots to prevent scope movement under sustained fire schedules.
- Matte Black Anodized Finish: Non-reflective hardcoat finish protects against abrasion, chemical exposure, and environmental corrosion.
- Sightmark Lifetime Warranty: Backed by Sightmark's limited lifetime factory warranty against manufacturing defect.
Product Specifications
- Brand: Sightmark
- Model/Series: Tactical 30mm Fixed Cantilever Scope Mount
- MPN / SKU: SM34019
- UPC: 812495024887
- Ring Diameter: 30mm
- Forward Cantilever Offset: 2.0 Inches
- Centerline Height: 1.5 Inches
- Mounting Interface: MIL-STD-1913 Picatinny Rail
- Material: 6061-T6 Aluminum
- Finish / Color: Matte Black Hardcoat Anodized
- Warranty: Sightmark Lifetime Warranty
- Weight: 6.7 oz
- Country of Origin: China
