Harris Number 6A Stud Adapter Rail Out of stock. Check back later... $10.40 MSRP Price: $10.22 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info For rails about 5/16 inch across slot. UPC: 051156000666Manufacturer: HarrisModel: 6ACategory: PartsOtherBipodStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.