PART NUMBER - C5J961 "B" 4.3 -4.5
PART NUMBER - C59238 "C" +0.05
PART NUMBER – C61529 "D" +0.15

Beretta shotgun part OVERSIZE LOCKING BOLT for DT10, DT11
The Beretta DT11 shotgun has a cross-bolt locking system that holds the barrels shut while the cartridge is shot. The cross-bolt system is an additional locking system that gives extra strength to the gun. The cross- bolt system is also seen in all the SO sidelocks as introduced by Beretta from the early 1930s.

Note: It is recommended that all BERETTA PARTS be installed by a QUALIFIED and trained gunsmith.

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Cleaning your Beretta over and under competition shotgun is important to keep it in good condition and ensure it functions properly. Here’s a guide on how to clean a Beretta over and under shotgun: At the end of a hunting or shotting session, clean the shotgun and make sure the chokes are properly tightened. Metal surfaces on shotguns without protective surface treatment need to be cleaned thoroughly and lubricated after every use to protect against rust. Use a cotton cloth soaked in Beretta gun cleaner and a cleaning rod to remove firing residues from the barrels. Use a bronze brush if necessary. Always insert the cleaning rod into the cartridge chamber. Run a clean, dry cloth through the bores to remove detergent residues. Lightly oil the bores with Beretta gun oil on a clean cotton cloth. Never apply too much oil. A buildup of oil will attract dirt, and this can interfere with the shotgun’s operation and reliability. lean the inner face of the receiver (especially the area around the firing pin holes) and oil lightly. Do not allow oil to enter the firing pin holes. The hinge pin area is a very important coupling area. The receiver and fore-end iron are subject to very high loads and if not properly oiled, could cause seizing of parts or shotgun malfunctioning. Always make sure these parts are lubricated, following the instructions provided. Carefully clean the outer surfaces of the shotgun to remove all traces of dirt, sweat and fingerprints. Apply a thin layer of gun oil (good quality) to the shotgun, using a soft cloth.