Magpul Industries Universal Carbine Stock 1913 Picatinny Rail Matte Finish Flat Dark Earth. To accommodate the wide variety of charging handles styles ejection port locations and control locations the UCS features a reversible hinge for left and right folding configurations and five degrees of drop for clearance. Specifications for Magpul Industries Universal Carbine Stock: Manufacturer: Magpul Industries Gun Make: Universal Gun Model: Universal Number of Sling Points: 1 Length: 7.6 - 10.6 in Gun Type: Carbine Hand: Ambidextrous Weight: 18 oz Attachment Type: Picatinny Fit: 1913 Picatinny Rail Finish: Matte Features of Magpul Industries Universal Carbine Stock Six (6) Position Push-Button LOP Adjustment Allows Three 3" of Total Adjustment Compatible with All Firearms with a 1913 Rail on Rear of Firearm Receiver Reversible Folding Mechanism Package Contents: Magpul Industries Universal Carbine Stock What firearm models does the manufacturer say Magpul Industries Universal Carbine Stock is compatible with? The manufacturer suggests that Magpul Industries Universal Carbine Stock is compatible with UniversalMagpul Industries MAG1441-FDE: Universal Carbine Stock 1913 Picatinny Rail Matte Finish Flat Dark Earth