The Magpul Universal Carbine Stock (UCS) is engineered to enhance versatility and adaptability for various firearms equipped with a vertical M1913 Picatinny rail. The Magpul Universal Carbine Stock (UCS) MAG1441-FDE for M1913 is the perfect solution for those seeking customization without compromising performance. Its design caters to a wide range of charging handle styles and ejection port locations, ensuring a seamless integration with your firearm. The UCS boasts a reversible hinge, allowing for both left and right folding configurations, alongside an innovative drop feature for ergonomic clearance. Six (6) Position, Push-Button LOP Adjustment Allows Three 3" of Total Adjustment Compatible with All Firearms with a 1913 Rail on Rear of Firearm Receiver Reversible Folding Mechanism Transform your weapon's performance with the Magpul UCS, where advanced functionality meets ergonomic design.