Life time warranty! Below dealer cost! * Aircraft Aluminum Extrusion with Integral Spinal Cords for Alignment, Picatinny Rails with 19 Top Slots, 23 Bottom Slots, 25 Left/Right Slots * Simple Installation, No Gunsmith or Tool Required, Solid Locking Feature for Secure Fit and Zero Retention * Allows for both bipods & Grips to be Mounted, Helps with Your Shooting Stability Platform. * Don"t let the low price fool you. It is Made of high quality T6 Aluminum and Anodized.