{"product_id":"c4-rear-aperture-insert-070","title":"C4 Rear Aperture Insert, .070","description":"The Ultradyne C4 Rear Aperture Insert utilized Dynalign Technology allowing for a concentric sight picture. Dynalign's circle-within-circle sight picture allows for faster sight picture acquisition. The use of the front aperture further reduces parallax affect which makes accuracy less depend on precise sight alignment. Dynalign is a faster and more accurate sight picture that can improve your shooting performance. Designed specifically for Ultradyne C4 Rear Sights. \u003cbr\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003cbr\u003e- Compatible With: AR-15, AR-10, and LR-308\u003cbr\u003e- Diameter: 0.07\"\u003cbr\u003e- Color: Black","brand":"Ultradyne","offers":[{"title":"Default Title","offer_id":15231162548290,"sku":"338358","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0086\/9043\/4114\/products\/GS338358.jpg?v=1555745165","url":"https:\/\/greensupply4.myshopify.com\/products\/c4-rear-aperture-insert-070","provider":"greensupply4","version":"1.0","type":"link"}