DoubleStar ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam and .5in RP. Entry Length. Specifications for DoubleStar ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam: Manufacturer: DoubleStar Color: Black Gun Model: M16 AR-15 Length: 9.75 in Condition: New Gun Make: AR Platform Gun Type: Rifle Weight: 21 oz Included Accessories: Buffer Tube Finish: Anodized Fabric/Material: 7075-T6 Aluminum Features of Doublestar ARFX-E Stock Assembly with Black Foam and .5in RP "Length: 7.75"" (Entry Length) Assembly: Yes Recoil Pad: .5"" " Package Contents: DoubleStar ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam What firearm models does the manufacturer say DoubleStar ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam is compatible with? The manufacturer says that DoubleStar ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam is compatible with AR-15 M16DoubleStar A115: ARFX-E Redesign Skeleton Stock Assembly Entry Length w/Black Foam and .5in RP