Big Bang Air Guns M4 Carbine w/ M-LOK Handguard CO2 Gas Air Rifle (.177 Caliber Air Gun)

Features Full metal receiver and barrel assembly High-performance CO2 system Adjustable crane-style stock for custom fit Removable magazine core for easy reloading 14mm CCW threading is widely compatible with a variety of aftermarket muzzle devices Picatinny RIS top rail for mounting optics, lasers, and other accessories M-LOK handguard features mounting slots along the entire length at 3 o'clock, 6 o'clock, and 9 o'clock positions Manufacturer: Big Bang Air Guns FPS Range: 400-425 Specifications: Length: 765-845mm (Adjustable) Weight: ~2800g Muzzle Threads: 14mm Negative (CCW) Gas system: 12gr CO2 cartridges Fire Modes: Semi automatic, Safe Package Includes: Gun, Magazine