The Venom 10 Rnd. Rotary Kit delivers faster cycle times, greater shell capacity and lightning-fast reloads to your Mossberg 12 gauge, transforming your shotgun into a Sidewinder Venom mag-fed tactical shotgun system.
This kit features the elite Wraptor forend. Specifically developed for use with pump-action shotguns, the Wraptor forend integrates three Picatinny rails for mounting multiple accessories, an integrated/patented heat shield with threaded inserts for mounting an optional kelly grip, and a patented 'sight tunnel' which allows the operator to rapidly locate the sights and acquire targets.
Kits are available for 500** & 88*** Mossberg 12 gauge pump shotguns configured with 5/6 shot magazine tubes and 18.5" barrels. See our shotgun compatibility guide to confirm your specific model.
Complete shotgun magazine conversion kit for at-home installation includes 10 Rnd. box magazine, forend with action bars, magazine tube, barrel clamp, forend grip, emery cloth, and installation guide.
An additional 10 round rotary and 5 round box magazines are available for sale separately. Venom Kit Installation Services are also available by our assembly technicians.
* Prices are for the conversion kit only. Fully pre-configured Sidewinder Venom magazine-fed systems are available through licensed firearm dealers.
** 500A Cruiser Shotguns with the 5/6 shot exposed thread magazine tube and heavy-duty end cap require ordering of the "590" version of the Sidewinder Venom Kit.
*** Sidewinder Venom Kits are not compatible with Single Action Bar Maverick 88 Shotguns, or with Mossberg 500L (Left-Handed) Shotguns. See compatibility guide for details.
Note! US Restrictions: Adaptive is unable to ship 10 Rnd Kits and Magazines to the state of Colorado. We recommend the purchase of 5 Rnd Kits and Magazines as an alternative.
Go from unloaded to loaded in under 2 seconds! With a Venom mag-fed shotgun, three loaded, 10 Round mags (30 rounds!) can be inserted, fired, and swapped out in the time it takes to load and fire only 11 rounds from a standard shotgun. That’s a 3 to 1 firing ratio! Standard shotguns simply can’t match the reload speed and capacity of a Venom mag-fed shotgun.
There are several configurations available for both 500/88 and 590 model shotguns. Heavy-duty magazines are available in 10 Round Rotary, 10 Round Box, and 5 Round Box variants.