GG&G's AR-15 Harris Bipod Adapter is extremely rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud" a counter sunk locking cross bolt that helps eliminate the possibility of snags" a clamping side bar that is recessed into the overall body of the adapter to provide a smooth overall appearance" and solid clamping engagement" even on undersized or worn dovetails. Most importantly" the GG&G Harris Bipod Adapter makes full surface contact with the Harris bipod interface which assures a tight fit. Fits Picatinny.