An extremely frustrating problem with the action on some inertia shotguns is the possibility of being jarred out of battery, a problem that can cost you shot opportunities. Retay’s exclusive “Inertia Plus” Bolt uses a patented “Rollover” internal torsion spring to forcefully rotate the bolt head into battery and keep it from ever being jarred out of battery. This system promotes quiet closing, practically eliminates bolt rattle, and most importantly, means virtually no more missed shot opportunities.