Magpul – UCS Universal Carbine Stock, M1913 Picatinny

Extreme Adjustability. Maximum Compatibility.

The Magpul UCS™ (Universal Carbine Stock) is purpose-built for firearms with an M1913 Picatinny rail stock mounting interface. Whether you’re running a SIG MCX, FN SCAR, IWI Galil, CZ Scorpion, Ruger LC Carbine, or an AK variant with an adapter, the UCS delivers unmatched versatility and shooter-focused adjustability.

Key Features:

• Reversible Folding Mechanism: Configure left or right folding to clear charging handles, ejection ports, and controls.
• Cheek Riser Options: Includes two exclusive risers (0.50" and 0.75") for precise comb height adjustment.
• Length of Pull Adjustment: Six-position, push-button adjustment for a full 3" range to fit shooters with or without body armor.
• Reversible QD Sling Socket: Anti-rotational design allows flexible sling mounting.
• Enhanced Comfort: Outfitted with the Magpul MOE SL® Enhanced Rubber Butt-Pad (0.70").

Adaptable to Multiple Platforms:

• Compatible with any firearm featuring a factory M1913 rear receiver rail or aftermarket adapter
• Supported rifles include: SIG MPX/MCX, FN SCAR, IWI Galil, CZ Scorpion, Ruger LC Carbine, Brownell’s BRN-180, and PSA AK/AK-V variants
• Reversible M1913 clamp provides a ½-slot height adjustment for further customization
• 5° drop angle ensures clearance for charging handles and ejection ports

Technical Specifications:

Platform-Specific LOP Ranges:

• Sig MCX: 11.6 – 14.6 in.
• Sig MPX: 11.9 – 14.9 in.
• FN SCAR: 12.1 – 15.1 in.
• IWI Galil: 11.6 – 14.6 in.
• CZ Scorpion: 11.9 – 14.9 in.
• Ruger LC Carbine: 13.6 – 16.6 in.
• PSA AK: 12.0 – 15.0 in.

Made in the USA, the Magpul UCS is built for professional-grade durability and customization, giving shooters ultimate control over fit, function, and comfort.

Note: Not compatible with Type 1 & Type 2 Sling Mount Kits, CTR®, AK, or Hunter/SGA® Cheek Risers, nor CTR, PRS, or Hunter Butt-Pads.