With enough shooting, a barrel-mounted Picatinny rail will come loose if you’re not very careful (and maybe even if you are).
How to Use a Picture Rail - The Broughton Street House
Shooting Gear, Page 5 of 8
How To Builid Code-Compliant Deck Railings & Posts
Installing Picture Rail Moulding - A Beautiful Mess
How to Install Deck Railing Posts
Attaching Deck Rail Posts
Composite Deck Railing, Outdoor Composite Railing
How to Measure for a Handrail Installation - Promenaid
Stainless Steel: The boat hand rail is constructed of marine grade stainless steel for rugged durability and maximum corrosion resistance and
Emoshayoga 2 Way Boat Hand Rail, Easy to Install Right Angle Sturdy Construction Boat Hand Rail Fine Polishing for Boat(22mm)