{"product_id":"aero-precision-apar700201c-m4e1-stripped-upper-receiver-223-remington5-56-nato-black-hardcoat-anodized-finish","title":"Aero Precision APAR700201C M4E1  223 Rem,5.56x45mm NATO","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe M4E1 Threaded Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. It is threaded to accept a standard AR15 barrel nut and forged from 7075-T6 aluminum and precision machined to work with all mil-spec AR15 parts. The M4E1 features a picatinny profile, M4 feedramps, and .250 takedown pin holes. This model has a black hardcoat anodized finish. NOTE: This model does not include port door or forward assist.\u003c\/span\u003e\u003c\/p\u003e","brand":"Aero Precision","offers":[{"title":"Default Title","offer_id":52668893233474,"sku":"CFS100539","price":112.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/31571-14263907__84432.1701458012.1280.1280.jpg?v=1774274571","url":"https:\/\/centerfiresystems.com\/products\/aero-precision-apar700201c-m4e1-stripped-upper-receiver-223-remington5-56-nato-black-hardcoat-anodized-finish","provider":"Centerfire Systems","version":"1.0","type":"link"}