Feature A Long-Range Precision Platform: Optimized for >500 Meters/Yards Shooting with 20MOA (6MIL) Cant for Extreme Distance Engagements A Large Objective Compatibility: Accommodates Max 56mm Scope Lenses with 35mm (1.4") Height from Rail to Ring Center A CNC-Machined Accuracy: Six Screws Per Ring Ensure Zero Shift; Full Hard Anodized Finish for Durability A Secure Picatinny Attachment: 21mm Rail Mount with 3 Crossing Bolts & Anti-Retreat Rings Prevent Scope Walk A High-Torque Installation: Rated for Max 45 Inch-Pounds Torque to Handle Heavy-Duty Mounting Requirements Comparison X-Accu Mighty 34mm Scope Rings Type Model Item Height(from bottom to ring center) Ring Width Weight X-AccuTMMighty 34mmScope Rings SCTM-52 34mm X-Accu Low Profile Picatinny Rings 26mm / 1 inch 28mm / 1.1" 145g / 5.1oz SCTM-53 34mm X-Accu MediumProfile Picatinny Rings 35mm / 1.4" 26mm / 1" 165g / 5.8oz SCTM-54 34mm X-Accu HighProfile Picatinny Rings 40mm / 1.6" 26mm / 1" 182g / 6.4oz SCTM-57 34mm X-Accu One Piece High Picatinny Mount 40mm / 1.6" 26mm / 1.0" 265g / 9.3oz SCTM-58 34mm X-Accu One Piece20MOA HI Picatinny Mount 40mm / 1.6" 26mm / 1.0" 265g / 9.3oz SCTM-60 34mm X-Accu One Piece Medium Picatinny Mount 35mm / 1.4" 50mm / 2.0" 250g / 8.8oz SCTM-61 34mm X-Accu One Piece20MOA Med Picatinny Mou 35mm / 1.4" 50mm / 2.0" 250g / 8.8oz