G-Force GF991220DLX: The G-Force GF99-DLX is a phenomenal option if you are looking for an extremely reliable and robust semi-automatic shotgun. This shotgun combines the ease of use ergonomics of the AR-15 platform with 12 gauge power. This multi-purpose shotgun is great to have on hand and is ideal for home-defense, plinking, and even hunting! The 20" barrel has a 3" chamber and will function with a wide variety of loads. This shotgun is fed from an AR-12 pattern detachable box magazine and makes reloads a breeze. With a standard adjustable sight set, you will always be right on target.