The Mossberg 95200 Accu-Choke is a flush-mount steel choke tube designed for 12 gauge shotguns with Improved Cylinder constriction for versatile shooting applications.Mossberg 95200 Accu-Choke System12 Gauge compatibilityImproved Cylinder constriction (.010" diameter)Flush steel construction with black finishCompatible with Maverick 88 Mossberg 500/535/930/940 shotgunsApproved for steel lead and non-toxic shotOptimized for 30-yard range shootingNon-ported designIdeal for close to medium-range shooting bird hunting and clay sports where a moderate shot pattern spread is desired. The steel construction ensures durability and consistent performance across various ammunition types.