{"product_id":"spikes-tactical-st-15-enhanced-complete-upper-5-56-nato-16in-chf-1-7-mid-length-a2-stu5435mls","title":"Spikes Tactical ST-15 Enhanced Complete Upper 5.56 NATO 16in CHF 1:7 Mid-Length A2 STU5435MLS","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Spike's Tactical ST-15 Enhanced complete upper assembly is built to Mil-Spec standards and engineered for dependable performance in an AR-15 platform. It features a 16 inch cold hammer forged barrel with a 1:7 twist, a mid-length gas system, and an F-marked A2 front sight base for a proven duty-style setup. The assembly is finished in black with a phosphate-coated barrel, includes a Mil-Spec M16 bolt carrier group, and is inspected, tested, and ready to install on a compatible lower receiver.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e16 inch cold hammer forged 5.56 NATO barrel with 1:7 twist for performance with a broad range of bullet weights\u003c\/li\u003e\n  \u003cli\u003eMid-length gas system for a balanced recoil impulse and reliable cycling\u003c\/li\u003e\n  \u003cli\u003eF-marked A2 front sight base with .750 inch gas seat for a classic, durable sight and gas block solution\u003c\/li\u003e\n  \u003cli\u003eIncludes Spike's Tactical Mil-Spec M16 bolt carrier group and charging handle for a complete upper package\u003c\/li\u003e\n  \u003cli\u003e7075-T6 aluminum upper receiver with black finish and flat-top Picatinny rail for optics and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Spikes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e STU5435MLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 815648023317\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatform:\u003c\/strong\u003e AR-15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .223 Remington \/ 5.56x45mm NATO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel:\u003c\/strong\u003e Cold hammer forged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront Sight Base:\u003c\/strong\u003e F-marked A2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Seat Diameter:\u003c\/strong\u003e .750 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Device:\u003c\/strong\u003e A2 flash hider\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Finish:\u003c\/strong\u003e Black phosphate \/ Mil-Spec phosphate coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpper Receiver Material:\u003c\/strong\u003e 7075-T6 aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Thread:\u003c\/strong\u003e 1\/2-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Mil-Spec M16 bolt carrier group, charging handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"Spikes","offers":[{"title":"Default Title","offer_id":44098994143354,"sku":"FLX-99746","price":625.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/292862251.png?v=1771252477","url":"https:\/\/tlooutdoors.com\/products\/spikes-tactical-st-15-enhanced-complete-upper-5-56-nato-16in-chf-1-7-mid-length-a2-stu5435mls","provider":"TLO Outdoors","version":"1.0","type":"link"}