The Mk4LE is available in 5.56x45mm 300 AAC BLK 9mm Luger and 22LR. They all feature a nitrided 16.1? 4140 CrMo steel barrel in a M4 profile except the 300 BLK as it features a M300 multi-role barrel profile. The standard configuration includes a F marked front sight base and a MBUS rear sight. - Caliber: 22 LR - Action: Semi-Automatic - Capacity: 25+1 - Material: Steel - Finish: Blued - Twist: 1:16 - Furniture: A2 Pistol Grip M4 Butt Stock with 6 Position Mil-Spec Receiver Extension - Weight: 6.2 lbs - Barrel Length: 16 - Overall Length: 32 - Trigger Type: Single Stage Mil Spec Style - Hand Guard: M4 Type 2-Piece - Mil-Spec Buffer/BHOA Forward Assist - Gas System: Direct Impingement - Sights: Adjustable Front Flip Up Rear
Determined at checkout.