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Hi Paul and welcome. Pump action locks up clean and firm with very smooth action. Cheers, stay safe and enjoy!

Here's a breakdown of common locking methods: 1. Tilting Bolt: This system uses a bolt that pivots or tilts within the receiver to lock into a corresponding recess or locking lug, creating a secure seal between the bolt and the barrel. Example: The Winchester Model 12 utilizes a tilting bolt mechanism for breech locking. 2. Rotating Bolt: A rotating bolt features a bolt head with locking lugs that engage with corresponding recesses in the barrel extension or receiver when the action is fully forward. Example: The Winchester Model 1200 and some Benelli shotguns use a rotating bolt locking system, similar in concept to the AR-15 rifle. 3. Tilting Locking Bar: This method employs a locking bar or block that tilts or pivots to engage with the receiver and lock the bolt securely in place before firing. Example: Older pump shotguns like the Winchester 1897 and Remington 870 use variations of this locking bar mechanism. 4. Wedge Locking: In this system, a wedge-shaped component is driven i

Hi Paul, I would contact Armscor/RIA as this information isn't available on line. Email: support@armscor.com Phone: (775) 537-1444 Stay safe & have a great day!