Feature A Features VAS(TM) Series X-MOD Interface Supporting Red Dot Plates, Picatinny Rails and Modular Attachments with Full System Compatibility A 30mm Dia. Rings, 38 mm / 1.50 in Center Height, Optimized for Stable Optical Alignment, Balanced Rifle Setup, and Consistent Shooting Performance A 5-Axis CNC Machined 7075-T6 Aluminum Delivers Maximum Rigidity, Precise Dual-Ring Alignment, and Reliable Recoil Resistance Up to .50 BMG A 20m Black Anodized Finish Provides Enhanced Scratch Resistance, Corrosion Protection, and Long-Term Durability in Harsh Environments A Cantilever Mount w/ Offset for Comfortable Eye Relief, Light & Precision-Machined One-Piece Design Enabling Quick Rifle Mount & Removal Without Re-Zero Specification Specification Details Ring Dia: 30 mm / 1.2 in Height: 65 mm / 2.6 in Central Height: 38 mm / 1.50 in (Bottom to Center) Width: 48 mm / 1.9 in Material: 7075-T6 Aluminum Alloy Weight: 217 g / 7.65 oz Torque: 20-25 in /lbs (2.3-2.8 NA m) Mount: Picatinny Finish: Matte Black Items in the Package: T15 Torx Wrench Size Download X-MOD Modular Picatinny Mount & Rings System User Manual