KFF DEFENSE PROUDLY PRESENTS PRO RISER MOD 1 Two years of R&D. Zero shortcuts. The Pro Riser Mod 1 is a purpose-built 0.75" optics riser designed for shooters who run a magnifier/optic combo and demand a zero that stays put. TECHNICAL SPECIFICATIONS Material: 7075-T6 Aluminum (The pinnacle of mounting alloys) Finish: Media Blasted & Class 3 Hardcoat Anodized Hardware: #10 Fine-thread alloy steel (170,000 PSI Tensile Strength) Height: +0.75" (19mm) | Resulting in 2.31"-2.68" total centerline height. Quality: Stringent 10-Step QC & MOPA Fiber Optic Laser Engraved "LIGHTWEIGHT BABY" - Ronnie Coleman The secret is simplicity. At 130 grams, the Mod 1 weighs the same as 4 AA batteries. We stripped the complexity, not the strength. WHY IT&&';;S OVERBUILT 125% More Surface Contact Most risers cut corners to save weight. We didn&&';;t. The Mod 1 offers 125% more contact with your Picatinny rail than the leading competitor. More surface area = more friction = an immovable platform. The Kinetic Index Notch We engineered a proprietary clamping design with a 0.005" clearance notch. By eliminating almost all forward/backward "slop," we&&';;ve ensured that recoil and impact have nowhere to go. Your zero remains true in conditions that would shift a lesser mount. Redundancy Upon Redundancy We didn&';t stop at the clamp. We added 0.170 square inch grooves for maximized bolt-to-body surface contact. Combined with our 170k PSI steel alloy bolts, this isn&';t just a mount; it&&';;s a structural part of your rifle. Verified Precision In-house tested with calipers to the nearest 0.0005". We dropped it, hit it, and hammered it with recoil. It doesn&';t move.View Our Testing and Evaluation Results HereLifetime Warranty