Partnership between CYMA CGS x Strike Industries, with EMG Licensing Full GBBR featuring Strike Industries Unique Furniture, Licensing and Markings Personal Defensive Weapon 7-inch Length Rifle Uses CYMA CGS System Internals Licensed Magazine by Lancer Systems Partial Parts Cross Compatibility with Tokyo Marui MWS Series Adjustable Trigger Pull M-LOK Rail Interface w/ Partial Picatinny Rail Aluminum Housing with Steel Internals Aluminum SI Oppressor, Forward Assist, Outer Barrel, 7-inch Strike Rail, Alloy Upper & Lower Receiver Steel Bolt Carrier, Fire Control, Hammer, Sear, Bolt Catch, Castle Nut, Take Down Pin, Trigger Pin Black w/ Red Accents Finish This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.