Magazine H&K HK45 Metal Version GBB 24rds out of stock or other necessary equipment Kleur:Everglade or other necessary equipment Quick detachable front sight with adjustable A2 square post assembly to fit all Picatinny Weaver style rails Equipped with locking retention thumb nut andclever and robust flip up posi lock design to guarantee zero in the most extreme combat condition Precision elevation adjustments to enhance shooting accuracy Profile designed for installation on gas block Magazine capacity: 24 rds Caliber: 6mm Weight: 310 g Shipping weight: 320 g