Flagaway Universal Pistol Top Bottom Side Rail Mount Scope Light Laser Fits to any pistol with picatinny/weaver rail under the frame in front of the trigger guard. Perfect for adding pistol scope or red dot sight on the top rail, flashlight on the bottom rail under the barrel, and laser sight on the side rail You can easily mount most tactical accessories with this mount. All hardware Included! 5.1" long with 10 Weaver/Picatinny Slots on Top, 3 slots on the bottom, and 1 slots on the side.