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The Magpul® UCS (Universal Carbine Stock) is engineered to complement platforms equipped with a rear-mounted vertical M1913 Picatinny rail. Offering broad compatibility and refined ergonomics, it provides a highly adaptable solution for modern carbines and PDW-style builds.
The reversible folding mechanism allows users to configure left- or right-side folding to suit their preference, while the integrated five-degree drop angle ensures appropriate clearance for charging handles and ejection ports. A reversible M1913 clamp with half-slot height adjustment enables precise positioning for optimal alignment.
A six-position, ambidextrous length-of-pull system provides up to three inches of adjustment, easily operated via controls on either side of the stock. This ensures a comfortable fit whether running armour, load-bearing equipment, or a slick setup.
For improved sight alignment and consistent cheek weld, the UCS includes two tool-less, removable, and reversible cheek risers (0.50" and 0.75"). A reversible, anti-rotation QD socket offers secure sling attachment options, and the stock is supplied with a MOE SL® Enhanced Rubber Butt-Pad (0.70") for improved shoulder purchase and comfort across varied gear setups.
Manufactured by Magpul in the USA.
Compatible with firearms featuring a rear M1913 Picatinny rail
Reversible folding mechanism (left or right configuration)
Reversible M1913 clamp with half-slot height adjustment
Five-degree drop angle for operational clearance
Six-position ambidextrous LOP adjustment (up to 3" range)
Includes 0.50" and 0.75" tool-less cheek risers
Reversible, anti-rotation QD sling socket
Supplied with MOE SL® Enhanced 0.70" Rubber Butt-Pad
Compatible with all MTWs using Buffer tube