The Magpul UCS (Universal Carbine Stock) MAG1441-BLK is a premium folding, adjustable stock engineered specifically for firearms equipped with a rear M1913 Picatinny rail interface. Designed for modern platforms such as SIG MCX, MPX, FN SCAR, CZ Scorpion, BRN-180, AK 1913 adapters, and similar systems, the UCS delivers exceptional adaptability, ergonomics, and durability.

The UCS features a reversible folding mechanism that allows the user to configure left or right folding based on preference and platform requirements. A built-in 5-degree drop angle enhances clearance for charging handles, ejection ports, and control placement across a wide range of firearm designs.

For optimal sight alignment and cheek weld, the stock includes tool-less removable cheek risers (0.50" and 0.75") along with a reversible M1913 clamp offering half-slot height adjustment for precise optic and head positioning.

A six-position adjustable length of pull provides approximately 3 inches of adjustment, easily actuated by ambidextrous LOP buttons to accommodate body armor, gear, or different shooting stances. The integrated anti-rotation QD sling socket and MOE SL Enhanced Rubber Butt-Pad enhance comfort, stability, and sling versatility.

Constructed from reinforced polymer and Made in the USA, the UCS is built as a rugged, modular stock solution for modern carbines and pistol-caliber carbines utilizing the 1913 rear rail standard.

IMPORTANT: This stock attaches to a rear 1913 Picatinny rail interface and is NOT compatible with AR-15 buffer tubes.