{"title":"300 Blackout Subsonic Ammo","description":"\u003cp\u003eCompare Fenix .300 Blackout products explicitly labeled subsonic. The documented assortment includes a 190 grain FXP load using a Hornady Sub X projectile and a 220 grain FMJ load. Both use 100 count packages and carry a Fenix-published velocity of 1,000 FPS. Projectile construction and Fenix product category distinguish the two choices. Both product descriptions also note that rifle configurations vary and may require gas setting or buffer weight changes.\u003c\/p\u003e","products":[{"product_id":"300-blackout-220gr-subsonic","title":".300 Blackout 220gr FMJ (Subsonic) (100 ct.)","description":"\u003cp\u003e\u003cstrong\u003eDUE TO EXTREME DEMAND, CURRENT LEAD TIME ON .300BLK\u003cspan\u003e \u003c\/span\u003eIS APPROXIMATELY 2 WEEKS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVelocity:\u003c\/strong\u003e  1,000 FPS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Length:\u003c\/strong\u003e  2.150\"\u003c\/p\u003e\n\u003cp\u003eOriginally called .300 Whisper, the .300 AAC Blackout was designed to achieve energies similar to the 7.62x39mm Soviet in an AR-15 while using standard AR magazines at their full capacity.  Our whisper-quiet subsonic rounds feature 220 grain projectiles for maximum ballistic energy.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProudly manufactured by American workers in Novi, Michigan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease Note: Our .300 Blackout 220 grain subsonic ammunition has been tested to function in several rifles with barrel lengths from 8\" to 10.5\", with and without suppressors.  However, rifle setups vary widely and you may need to adjust your gas settings and\/or swap buffer weights to find the best performance for your weapon.  \u003c\/span\u003e\u003c\/p\u003e","brand":"Fenix Ammunition","offers":[{"title":"100","offer_id":31537381933123,"sku":"FA300220100","price":108.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2609\/3552\/files\/PXL_20250228_192845270.jpg?v=1740771086"},{"product_id":"300-blackout-190gr-fxp-sub-x-100-ct","title":".300 Blackout 190gr FXP Subsonic (100 ct.)","description":"\u003cp\u003e\u003cstrong\u003eVelocity:\u003c\/strong\u003e  1,000 FPS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Length:\u003c\/strong\u003e  2.050\"\u003c\/p\u003e\n\u003cp\u003eOriginally called .300 Whisper, the .300 AAC Blackout was designed to achieve energies similar to the 7.62x39mm Soviet in an AR-15 while using standard AR magazines at their full capacity.  Our whisper-quiet subsonic rounds feature 190 grain Hornady Sub-X projectiles for maximum ballistic energy delivered on target\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProudly manufactured by American workers in Novi, Michigan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease Note: Our .300 Blackout 190 grain subsonic ammunition has been tested to function in several rifles with barrel lengths from 8\" to 10.5\", with and without suppressors.  However, rifle setups vary widely and you may need to adjust your gas settings and\/or swap buffer weights to find the best performance for your weapon.  \u003c\/span\u003e\u003c\/p\u003e","brand":"Fenix Ammunition","offers":[{"title":"100","offer_id":42931887374403,"sku":"FX300190100","price":134.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2609\/3552\/files\/1000007660.jpg?v=1781610213"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2609\/3552\/collections\/1000007660_c08879ec-d2e8-411f-b050-6ad2faa0afee.jpg?v=1785309223","url":"https:\/\/fenixammo.com\/collections\/300-blackout-subsonic-ammo.oembed","provider":"Fenix Ammunition","version":"1.0","type":"link"}