Winding wheel feature on the bottom of mag for an easy load. Reliable feeding is processed through the high tension spring. Great weight capacity for the LT-07B AK74 AEG series. Light weight polymer material that doesn't impede performance. Magazine can hold 600 rounds of 6mm BBs for a great value. In the Box 1X Magazine Specifications: California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov