The Atlas Custom Works M4 GR-300 Long Version Airsoft AEG Rifle with Folding Stock Black delivers the rugged performance and authentic design that players demand. Built with heavy-duty metal receivers, a polymer motor grip, and a textured handguard, this rifle balances durability with ergonomic comfort. Its firing system is powered by a full metal Version 2 gearbox, providing reliable operation at 350 to 360 FPS with .20g BBs. Adjustable front and rear sights, along with a top 20mm Picatinny rail, allow for versatile optics and accessory customization, while the foldable stock makes the rifle adaptable for both field and CQB play. A functioning charging handle provides access to the adjustable hop-up, and the 450-round high-capacity magazine ensures extended action without frequent reloads. At 6.5 lbs and with an adjustable length of 35.5 to 42.5 inches, the GR-300 strikes the perfect balance of realism and maneuverability.  Lancer Tactical LCD Universal LiPo Balance Charger for safe and efficient charging, Golden Ball 3000-round 0.25g ProSlick Seamless BBs for smooth and accurate feeding, and a Lancer Tactical 11.1v 900mAh LiPo Battery for faster trigger response and consistent power. An Intellect Airsoft Deans Battery Adapter Cable adds flexibility, making this package universally compatible across multiple setups.