The Panzer Arms M4 Speed Pro. A Competition Style Semi-Auto Tactical Shotgun with Skeleton body is the Speed Variation of the Panzer M4 shotgun. Manufactured with a Lightened Bolt for Rapid Follow Up Shots. It is a reliable, durable inertia-driven semi-automatic 12 gauge shotgun. It's made from 4140 steel with just a polymer coating to match the forward hand guard.FeaturesMetal M-Lok ForendFixed Skeleton StockPorted Barrel to Reduce Felt RecoilOver-sized Knurled Rotating Charging Handle for Ambidextrous UseOver-sized Bolt Release Button For Quick and Easy Shell Loading at Match SaverFeatures AMBIDEXTROUS Charging Handle Enabling the User to Switch to Left Handed Operation SeamlesslyMachined and Fluted for Rapid Follow-Up ShotsQD Mount Attachment allowing for rapid and versatile attachment or detachment of accessories such as slings100% Interchangeable with Benelli M4 Parts