This is just an FYI post. These are the best I've ever found. They're not silicone impregnated but rather have VCI made into them. Vapor phase corrosion inhibitors have been around a long time. I was using rolled up lengths of Brownell's VPI paper for bore protection way back in the 80s.
This is the long, one piece sock.
https://www.beretta.com/en-us/produc...-vci-SFOU65001
And, this is the two piece for use when the gun is broken down. I use the two piece ones in my LOM cases.
https://www.beretta.com/en-us/produc...down-SFOU65010