Magpul MAG1441BLK UCS Black Folding
$208.95
$219.95
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The Magpul MAG1441BLK UCS (Universal Carbine Stock) is a fully adjustable folding stock built for modern carbines and tactical rifles that run an M1913 Picatinny rail instead of a traditional buffer tube. If you're running a platform like the SIG MCX or MPX, FN SCAR, IWI Galil, CZ Scorpion, or any other piston-driven or non-AR receiver with a rear Picatinny mount, this is the stock that lets you dial in a perfect fit without tools and without compromise.
What sets the UCS apart is the sheer adjustability. You get six positions of length-of-pull adjustment—spanning three full inches—so it accommodates shooters with or without body armor and kit. Two reversible cheek risers (0.50" and 0.75") let you tune comb height for your sight line, whether you're shooting irons or optics. The reversible M1913 clamp adds another half-slot of height adjustment, meaning you can fine-tune your entire sight picture from the stock itself. The reversible folding hinge means you can configure it to fold left or right depending on your platform's charging handle and ejection port layout. Five degrees of drop built into the design clears most charging handles and controls without snagging.
Built in the USA and weighing just 1.1 pounds, the UCS includes a reversible QD socket for sling attachment and plays nice with MOE SL and DT Butt-Pads. Whether you're building a precision marksman rifle, a suppressed patrol carbine, or an overlander's truck gun, the MAG1441BLK gives you the adjustment range and modularity to make it work—no gunsmithing required.
Key Features
- Six-position push-button length-of-pull adjustment (3 inches total range)
- Two reversible cheek risers for comb height tuning
- Reversible M1913 clamp with half-slot height adjustment
- Reversible folding mechanism for left or right fold configuration
- Five-degree drop angle for charging handle and ejection port clearance
- Reversible anti-rotation QD socket for sling attachment
- Compatible with MOE SL and DT Butt-Pads
- Made in the USA
Specifications
| Brand | Magpul |
| Model | MAG1441BLK |
| Type | Folding Adjustable Carbine Stock |
| Mount Type | M1913 Picatinny Rail |
| Length of Pull Adjustment | 3 inches (6 positions) |
| Overall Length Range | 7.6 - 10.6 inches |
| Height at Butt Plate | 5.3 inches |
| Maximum Width | 1.9 inches (at hinge) |
| Weight | 1.1 lbs |
| Cheek Risers Included | Two reversible (0.50" and 0.75") |
| Finish | Black |
| Made In | USA |
Frequently Asked Questions
What guns is the Magpul UCS compatible with?
The UCS is designed for any rifle with an M1913 Picatinny rail on the rear receiver, including the SIG MCX and MPX, FN SCAR, IWI Galil, CZ Scorpion, Ruger LC Carbine, Brownells BRN-180, PSA AK/AK-V, and others. Exact length-of-pull ranges vary by platform—for example, the SIG MCX runs 11.3–14.3 inches, while the Ruger LC Carbine spans 13.3–16.3 inches.
Can I adjust the length of pull without tools?
Yes. The UCS features six push-button positions that adjust length of pull across a three-inch range, all toolless. The cheek risers are also removable and reversible without tools.
Does the stock fold left and right?
The UCS includes a reversible hinge that allows you to configure the folding direction to either side. This accommodates different charging handle positions and ejection port locations across platforms.
What's included in the box?
The Magpul MAG1441BLK ships with two reversible cheek risers (0.50" and 0.75"), a reversible M1913 clamp, and a reversible QD socket for sling attachment.
