MPN: MAG1441

Features:

• M1913 Picatinny Ready: Mounts to receivers with a rear M1913 rail (e.g., MCX/MPX, SCAR, Galil, Scorpion, select AK variants)
• Left/Right Folding: Reversible hinge plus a 5° drop for charging-handle/ejection clearance
• Dialed-In Fit: Six positions of LOP with 3" total adjustment via side button
• Cheek Height Options Included: Two toolless, reversible cheek risers (0.50" & 0.75")
• Fine-Tune Mount Height: Reversible M1913 clamp gives an extra ½-slot vertical adjustment
• QD Sling Ready: Reversible, anti-rotation QD socket built in
• Comfortable Shoulder Weld: Ships with MOE SL® Enhanced 0.70" rubber butt-pad
• Made in the USA: Designed and built domestically

Specifications:

• Material: Polymer
• Finish: Black, Flat Dark Earth
• Weight: 18 oz.
• Height: 5.3"
• Width: 1.9"
• Length: 7.6" - 10.6"
• Length of Pull: Exact LOP range varies, known Max/Min LOP follows:
• Sig MCX: 11.6" - 14.6"
• Sig MPX: 11.9" - 14.9"
• FN SCAR: 12.1" - 15.1"
• IWI Galil: 11.6" - 14.6"
• CZ Scorpion: 11.9" - 14.9"
• Ruger LC Carbine: 13.6" - 16.6"
• PSA AK: 12.0" - 15.0"

Compatibility:

• Platforms with the 1913 Picatinny rail interface at the rear of a receiver

Includes:

• 1x Magpul UCS Picatinny Stock
• 1x 0.50" Cheek Risers
• 1x 0.75" Cheek Risers

Details:

The Magpul UCS (Universal Carbine Stock) earns its name by giving modern carbines with a rear 1913 Picatinny rail a compact, adjustable, and foldable shoulder stock that bolts straight on. If your SBR or pistol-caliber carbine runs a vertical rear rail—think MCX/MPX, SCAR, Galil, Scorpion, BRN-180, Ruger LC Carbine, and many AKs with a 1913 adapter—the Magpul UCS stock drops in cleanly and brings real ergonomic tuning without adding bulk.

Reversible Folding & Built-In Clearance

A reversible hinge lets you choose left or right folding to suit your sling, controls, or storage needs. Magpul also builds in a 5-degree drop at the butt, giving charging handles and ejection paths the space they need—so you get a solid shoulder weld without the stock fighting your rifle’s mechanics.

Cheek Weld You Can Dial In

The UCS Picatinny stock ships with two cheek risers (0.50" and 0.75") to match your optic height, and the entire assembly can be moved up or down on the rail for a proper head position. Need that last bit of precision? Flip the mounting clamps to gain a half-slot adjustment, fine-tuning cheek height so irons or glass line up exactly where you want them.

Length of Pull That Keeps Up

Kit changes day to day, and your stock should adapt. A six-position mechanism offers approximately 3 inches of LOP travel, with ambidextrous side buttons that are easy to find and positive under pressure. The MOE SL 0.70" butt-pad adds grip and cushion, making fast mounts feel natural while taking the sting out of longer strings.

Small Details, Big Payoff

A reversible, anti-rotation QD socket lets you stage your sling exactly how you run it. Combined adjustability—height, fold direction, cheek height, and LOP—adds up to a stock that feels purpose-built for your rifle rather than adapted to it. At about 18 ounces and 7.6–10.6 inches overall, the UCS stays balanced and compact for transport, storage, and hard use.

Made to Work, Made in the USA

From the hinge geometry to the pad texture, the Magpul UCS is designed for real shooters who need a rugged, low-maintenance stock that stands up to weather, reps, and travel. It’s made in the USA, and it turns a wide range of 1913-equipped receivers into easy, dependable shooters you can tailor to your build.