{"product_id":"altra-166-outsert-titanium-400-spine-1-dz","title":"Altra 166 Outsert Titanium 400 Spine 1 dz.","description":"The Altra Reinforced Concentric Outset System (A.R.C.O.S.) for 166 Shafts is designed to deliver unmatched durability and performance. Crafted from 7075-T6 aluminum, this system includes an insert that secures into the arrow shaft at a depth of 0.875 inches, while the outsert threads directly onto the insert, encapsulating the leading end of the arrow by 0.43 inches. Pre-installed rubber O-rings help lock the outsert in place, reducing vibration and enhancing concentricity for a more precise arrow setup and improved downrange accuracy. Available in four spine sizes, the A.R.C.O.S. system is perfect for those seeking optimal fit and performance. Fits Altra Arrows 166 Shafts;Machined from 7075-T6 aluminum for unmatched durability;Secure insert depth: 0.875 inches;Outsert encapsulates arrow end: 0.43 inches;Pre-installed rubber O-rings reduce vibration and improve concentricity;Comes in 12 pk QTY;Available in four sizes: 250, 300, 350, \u0026amp; 400 spine;50gn Total Weight;Accepts micro FMS insert weights;Enhances downrange accuracy and precision","brand":"Altra","offers":[{"title":"Default Title","offer_id":49841264394433,"sku":"1502403","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/3122\/2721\/files\/274556303.jpg?v=1765405194","url":"https:\/\/hr91ae-wz.myshopify.com\/products\/altra-166-outsert-titanium-400-spine-1-dz","provider":"ScentDefenders.com","version":"1.0","type":"link"}