The Vortex Hunter Rings provide rock solid attachment to Picatinny or Weaver-style bases. Constructed of aircraft grade 6061-T6 aluminum, these rings will make your next hunting rig ready to withstand the harsh conditions every hunter encounters sooner or later. The sleek style and finish will make your setup the envy of all your hunting buddies at camp for years to come. Notes:Fits Weaver-style and standard picatinny-style railsMounting hardware includedLimited Lifetime Warranty