Taran Tactical Innovations Oversized Bolt Release OD. Will work on Benelli Shotguns & other shotguns with similar bolt release configuration. Made of aircraft grade aluminum with mil spec hard anodizing. Designed to be big enough to easily & quickly release the bolt in the heat of competition but not be too big to get caught on things on a defensive tactical shotgun. Extensive testing of prototypes as well as previously existing bolt releases has proven this design to be perfect in size and dimension. You never want to run your shotgun dry during a match but if you do this part can help you get back into action as fast as possible. The TTI Oversized Bolt Release has already proven itself by winning all major divisions at the 3-Gun Nationals in 2013 as well as the 3-Gun Nation Championship. Specifications for Taran Tactical Innovations Oversized Bolt Release: Manufacturer: Taran Tactical Innovations Finish: Hard Anodized Gun Make: Benelli Gun Model: Benelli M1 Package Contents: Taran Tactical Innovations Oversized Bolt Release What firearm models does the manufacturer say Taran Tactical Innovations Oversized Bolt Release is compatible with? The manufacturer says that Taran Tactical Innovations Oversized Bolt Release is compatible with Benelli M1Taran Tactical Innovations BNLI-BRS07: Oversized Bolt Release OD