Mounting Hardware is Included 6-48 X .313"" Overall Length 8-40 X .313"" Overall Length 8-40 X .335"" Overall Length This mount does not fit the Vortex Venom or Viper, that mount is available here. This mount has a bottom radius of .670"". There should be a slight gap at the top of the radius between the receiver and the mount when mounted. The two spreads on this mount measure .500""-.505"" and .8625"" which should fit the receiver ring on the following guns: Common Applications: Shotgun: Mossberg 500, 590, 835, 930, 935 Pre '97 Mossberg 500, 590, 835, 930, 935 Late (after '97) (Requires 8-40 and Longer Screws) Benelli Auto / Super Black Eagle / Vinchi, M2 (Will Work in the Front Set Only, 8-40 Screws) Benelli Supernova (Will Work in the Front Set Only, 8-40 AND Longer Screws) Browning A-Bolt 12 Gauge Franchi Affinity Savage 210 Savage 212 Savage 220 Stoeger M3000 / Stoeger M3500 (Will Work in the Front Set Only, 8-40 Screws) Winchester 1300 Winchester SXP Rifle: Remington 700, 722, 40x Remington 783 Remington 710/770 Remington xp 100 Remington 4, 6, 7400, 7615 (Front Set Only, 8-40 Screws) Savage Arms Centerfire Models Winchester 70
Mounting Hardware is Included 6-48 X .313"" Overall Length 8-40 X .313"" Overall Length 8-40 X .335"" Overall Length This mount does not fit the Vortex Venom or Viper, that mount is available here. This mount has a bottom radius of .670"". There should be a slight gap at the top of the radius between the receiver and the mount when mounted. The two spreads on this mount measure .500""-.505"" and .8625"" which should fit the receiver ring on the following guns: Common Applications: Shotgun: Mossberg 500, 590, 835, 930, 935 Pre '97 Mossberg 500, 590, 835, 930, 935 Late (after '97) (Requires 8-40 and Longer Screws) Benelli Auto / Super Black Eagle / Vinchi, M2 (Will Work in the Front Set Only, 8-40 Screws) Benelli Supernova (Will Work in the Front Set Only, 8-40 AND Longer Screws) Browning A-Bolt 12 Gauge Franchi Affinity Savage 210 Savage 212 Savage 220 Stoeger M3000 / Stoeger M3500 (Will Work in the Front Set Only, 8-40 Screws) Winchester 1300 Winchester SXP Rifle: Remington 700, 722, 40x Remington 783 Remington 710/770 Remington xp 100 Remington 4, 6, 7400, 7615 (Front Set Only, 8-40 Screws) Savage Arms Centerfire Models Winchester 70