Ultra-light Harris Bipods are lightning quick and quality manufactured with heat treated steel and hard alloys. These adapters allow you to match any Harris Bipod to your favorite firearm. Some of these adapters will require minor stock or fore end inletting for proper fit. Adapter only, see below for fit/application. Bipods sold separately.FeaturesFits AR-15/M16 standard handguards without alterationMade to fit AR-15 round handguardWill not fit the older triangular type hand guardPackage contains a perforated flange with a threaded shank, a rectangular washer, a Q.D. stud and a sling swivel