Rail mounted guns

Tactical Walls ModWall Multi-Gun Rack MWMGR - Safe and Vault Store.com

Streamlight TLR-4 Rail Mounted Gun Light with Laser - 69240 from

Cadex Defence – C9/M249 Dual Rail

Railway Guns British and German Guns at War

Railway gun - Wikipedia

GUNS Magazine Streamlight Protac 2.0 Rail Mount Long Gun Light - GUNS Magazine

Mini 1300 High Lumens Picatinny Tactical Hunting Gun Rail Mounted Compact Pistol Weapon Guns Flashlight Light for Glock 17 Gunlight with Red Laser Combo - China Gun Light, Weapon Light

AR-15 Rifle Mount For Vehicles, Truck SUV, Cars

Image of Rail-mounted guns, Italy, 1943 (b/w photo)

ASG Pistol Rail Mount

Mount Picatinny Cameras Picatinny Gopro Adapter - Sports & Action Video Cameras Accessories - Aliexpress

RAIL DOGZ Universal Gun Rail Mount for Small Cameras - All Metal Camer – Fotodiox, Inc. USA

Red Beam Weapon Pistol Light Gun Rifle Rail Mount LED Flashlight Torch