{"product_id":"tacfire-bu9mm4-pistol-upper-assembly-9mm-luger-4-barrel-m-lok-handguard-ar-platform","title":"TacFire BU9MM4 Pistol Upper Assembly 9mm Luger 4\" Barrel M-LOK Handguard AR-Platform","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eTacFire BU9MM4\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003e9mm Luger\u003c\/strong\u003e pistol upper assembly built for AR-platform pistols and lowers. It arrives fully assembled with a \u003cstrong\u003eBolt Carrier Group installed\u003c\/strong\u003e and ready to drop onto a Mil-spec AR-15 lower receiver, giving builders a fast path to a compact pistol-caliber AR.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e4\" barrel\u003c\/strong\u003e carries a \u003cstrong\u003eblack nitride\u003c\/strong\u003e finish for corrosion resistance and easier cleaning, paired with a \u003cstrong\u003e7075-T6 aluminum\u003c\/strong\u003e upper receiver finished in \u003cstrong\u003eblack anodized\u003c\/strong\u003e for the durability AR shooters expect. The \u003cstrong\u003eM-LOK\u003c\/strong\u003e handguard offers a slim, modular mounting surface for accessories, and the upper ships \u003cstrong\u003eoptic ready\u003c\/strong\u003e so you can mount your preferred red dot or magnifier directly to the platform.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eOperation on a standard AR-15 lower requires a 9mm magazine adapter block (sold separately) to accept pistol-caliber magazines. Once paired with the appropriate lower and adapter, this upper delivers a lightweight, compact pistol-caliber shooting platform.\u003c\/span\u003e\u003c\/p\u003e","brand":"TacFire","offers":[{"title":"Default Title","offer_id":55101676945730,"sku":"146737","price":280.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_52b76e4f-e8c7-4298-ba74-aab53938679e.png?v=1784791919","url":"https:\/\/centerfiresystems.com\/products\/tacfire-bu9mm4-pistol-upper-assembly-9mm-luger-4-barrel-m-lok-handguard-ar-platform","provider":"Centerfire Systems","version":"1.0","type":"link"}