{"product_id":"pws-mk116-mod-1-m-upr-16-762x39-blk","title":"PWS MK116 MOD 1-M Complete Upper Receiver 7.62x39mm 16\" – AR-15 Platform","description":"\u003cp\u003eThe PWS MK116 MOD 1-M is a complete upper receiver assembly chambered in 7.62x39mm, designed to convert any mil-spec AR-15 lower into a reliable platform for this popular intermediate cartridge. Built around a 16-inch barrel with PWS's long-stroke piston operating system, this upper delivers consistent performance with steel-cased ammunition and eliminates many gas system issues common to direct impingement conversions. The MOD 1-M configuration includes PWS's modular M-LOK rail system for mounting accessories while keeping weight manageable.\u003c\/p\u003e\u003cp\u003eConstructed with a 4150 chrome moly vanadium barrel and finished in black, the MK116 features PWS's proprietary FSC muzzle device and ambidextrous controls. The long-stroke piston system keeps heat and fouling away from the bolt carrier group, extending reliability between cleanings. This is a drop-in upper that requires no modification to standard AR-15 lowers—just ensure you're using 7.62x39mm-compatible magazines and a bolt appropriate for this caliber. Ships complete and ready to install.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 7.62x39mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete upper receiver assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lower:\u003c\/strong\u003e Mil-spec AR-15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 4150 CMV barrel, forged aluminum receiver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Barrel, bolt carrier group, charging handle, rail system, muzzle device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in, requires 7.62x39mm magazines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Primary Weapons Systems","offers":[{"title":"Default Title","offer_id":47938844983551,"sku":"PWSMK1-M1U-762X39-16","price":1129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5414960.jpg?v=1766534755","url":"https:\/\/doublestackstore.com\/products\/pws-mk116-mod-1-m-upr-16-762x39-blk","provider":"Double Stack Store","version":"1.0","type":"link"}