M600 Tactical Light comes with the pictured Pressure Switch that can attach to either your 20mm Rail OR an MLOK/Keymod handguard.
Pack includes 2x CR123A Battery
Specifications
Colour: BK/DE
Material: Metal
Lumens: 600
Battery: CR123A x2 (Included)
Material: Metal
Lumens: 600
Battery: CR123A x2 (Included)