Harris Engineering Adapter, For Mini 14/30, Black NO. 14 Harris Engineering's Special Adapter Stud for Ruger Mini-14/Mini-30 will allow you to convert your Ruger Mini-14 and Mini-30 Standard and Ranch Rifles to accept a bipod. By installing this adapter" it will allow you to connect a variety of swivel stud mounted bipods" including your favorite Harris. This adapter attaches to the factory front sling swivel" which is required to make this adapter work. Fits Ruger Mini-14 Series 181 and higher except the factory folding stock models" Mini-30 and Standard and Ranch Rifle versions with the front Sling loop. This adapter will not work on Ruger Target Models due to the fact that no factory mounted sling loop exists.