The 5 round Box magazine is designed for use with the Sidewinder Venom� magazine-fed shotgun system. Its lightning-fast reload action cycles 12 gauge rounds consistently and reliably for the ultimate in performance for defense range or competition. - Faster reloads - Durable polymer construction - Guaranteed reliable feeding - 5 round Box magazine - Compatible with 12 gauge -2.75 ammunition - Ambidextrous design - Durable metal and composite construction - Gauge: 12 -2.75 - Total rounds: 5 - Dimensions: 5.50 H x 2.00 W x 3.50 D - Weight (empty): 0.60 lbs. (9 oz.)