The Venom 5 Rnd. Box Mag Kit transforms your Mossberg 12 gauge shotgun into a Sidewinder Venom mag-fed shotgun system. The Venom Kit delivers faster cycle times and reliable, lightning fast reloads. Go from empty to fully loaded in seconds — for the ultimate in home defense.
Kits are available for either 590 series or 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 5 rnd. box magazine, forend with action bars, magazine tube, barrel clamp, forend grip, emery cloth and installation guide.
Additional 5 round box, 10 round box and 10 round drum magazines are available for sale separately. Venom Kit Installation Services are also available by our assembly technicians.
Start of Form Venom 5 Rnd Box Kit
AT-05000 – 500/88 $199.99 USD
AT-05905 – 590 $199.99 USD
Designed for owner installation
Improved firearm versatility and performance
Durable polymer and alloy construction
Guaranteed reliable feeding
5 round Box magazine
Compatible with 12 gauge – 2.75″ ammunition Ambidextrous design