Metal Receiver, barrel assembly, feed cover, and bipod Heavy duty nylon fiber reinforced handguard, and motor grip Reinforced metal gearbox shell w/ 8mm bearings & heavy duty steel gears Updated internals allow use of higher discharge rate batteries such as LiPo & Li-Ion without worry of premature wear Collapsible Para stock 2400rd sound activated box magazine included (compatible with standard M4/M16 magazines) Adjustable Front and Rear Sights; 1913 Picatinny top rail for mounting optics Steel Folding Bipod Manufacturer: A&K / Licensed by FN Herstal. OEM by A&K FPS: ~350 Specs- Length: 790mm / 920mm (Retracted / Extended) Weight: 6800g Inner Barrel: 363mm Magazine Capacity: 2400rd Box Magazine. Compatible with Matrix, G&G, Tokyo Marui and other similar M4 / M16 Series Airsoft AEG Magazines and Classic Army Box Magazines. NOT compatible with G&P M249 Box Magazines Thread Direction: 14mm Negative Gearbox: Custom Full Metal, Fully Upgradeable Motor: Short Type Fire Modes: Full-Auto, Safety Package Includes: Gun, Box Magazine, Bipod Battery: 9.6v Small Butterfly Type recommended (Battery not included) Hopup: Yes, Adjustable Owned and used in TN, I’ve only used it for one or two games (I mostly play CQB) great gun works super well everything functions perfectly on the gun and the box mag. Removed the orange tip threads work great, please ask if you have any questions! ** Buyer pays shipping ** willing to do local pickups within 30 minutes