The LEWIS MACHINE CO MARS-LS 16" .223 Remington 30 Rounds is an exceptional choice for those seeking a reliable and affordable rimfire option. This firearm boasts a direct impingement operating system, ensuring smooth and efficient performance. The 16" chrome-lined barrel features a 1:7" RH twist, making it suitable for a variety of applications. The upper receiver is equipped with the LMT Monolithic Rail Platform Mounting System, providing a sturdy and versatile platform for accessories. With its ambidextrous safety, magazine release, and slide catch, this rifle is designed to accommodate both left- and right-handed shooters. Fast shipping ensures that you can get your hands on this impressive firearm quickly. Product Features and Specifications: Caliber: 223REM/5.56NATO Operating System: Direct Impingement Barrel Length: 16" Barrel Twist: 1:7" RH Bolt Carrier Group: S-A BCG Upper Receiver: LMT Monolithic Rail Platform Mounting System Lower Receiver: MARS-L lower receiver Capacity: (1) 30rd magazine