6.02 Inner Barrel for GBB 540mm in-stock Caliber: 6mm Weight: 130 g keeps holster vertical and

6.02 Inner Barrel for GBB 540mm in stock Caliber: 6mm Weight: 130 g keeps holster vertical and Caliber: 6mm Weight: 130 g Shipping weight: 190 g green beam with a range of 8m and 30 hours battery runtime  Low powered 35lm white ray with a range of 32m and 50 hours of battery runtime  High powered 550lm white narrow beam with a range of 78m and battery runtime of 4 hours A single CR123A or rechargeable battery provides power for the headlamp One of the best company if you are looking for top quality barrels Maple Leaf is constantly striving to improve and introduce new products that make it stand out from the competition and provide the customer with greater accuracy and range