Benelli’s R1 Big Game Rifle features the famous Benelli ComforTech Stock to reduce recoil on punishing game loads. The ARGO system was U.S.M.C. approved for extreme reliability under any weather conditions.Benelli’s R1 big game rifle features simplicity, strength, and ingenious design.FeaturesSynthetic Stock with GripTight Finish – Provides a secure grip in wet or dry conditions on handling surfaces.ComforTech – Feel 48% less recoil with ComforTech, this is the original recoil reduction system that revolutionized firearms technology.ARGO System – This piston-driven Auto-Regulating Gas-Operated (A.R.G.O.) system was designed for and approved by the U.S. Marine Corps.CRIO System – Superior shooting performance thanks to uniform barrel vibration and expansion during firing; broader, more even and more uniform hot patterns. Benelli is the first firearms manufacturer to apply industrial cryogenic treatments to small arms barrels and chokes in order to enhance ballistic performance.Calibers30-06 SPRG – #11771300 WSM – #11751300 WIN MAG – #11772338 WIN MAG – #11773Additional magazines can be found here on our siteSights – Drilled & TappedIf you want to install iron sights, Benelli’s factory production sights are available for purchase from here on our websiteIf you want to install a factory picatinny optics rail, you can find the Benelli factory production 11-slot picatinny rail here on our website