Proof BARREL, RUGER PRECISION RIMFIRE, 18.5 LENGTH, 16 TWIST, 4 GROOVE, 1/2-28 THREAD, CF, BULL Out of stock. Check back later... $650.00 MSRP Price: $625.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 843068119570Manufacturer: Proof ResearchModel: 119570Caliber: 22LRCategory: PartsOtherBarrelsStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.