{"product_id":"spikes-st-9x-9mm-heavy-buffer","title":"Spike's Tactical ST-9X 9mm Heavy Buffer – AR-9 Pistol Caliber Carbines","description":"\u003cp\u003eThe Spike's Tactical ST-9X 9mm Heavy Buffer is engineered to reduce bolt bounce and smooth cycling in AR-pattern pistol caliber carbines chambered in 9mm. The additional weight helps control the faster recoil impulse of blowback 9mm systems, minimizing felt recoil and improving follow-up shot speed. This buffer is particularly effective in suppressed configurations where increased back pressure can cause cycling issues.\u003c\/p\u003e\u003cp\u003eMachined to mil-spec dimensions, the ST-9X features hardened tungsten weights for maximum density and durability. It installs directly into standard carbine buffer tubes without modification. Compatible with most AR-9 lower receivers and 9mm upper assemblies using Glock-style or Colt-pattern magazines. Finished in manganese phosphate for corrosion resistance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Heavy Buffer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-9 Pistol Caliber Carbines (9mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Tungsten weights, steel housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Manganese phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in replacement for standard carbine buffer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spike's Tactical","offers":[{"title":"Default Title","offer_id":47938903736575,"sku":"SPKSLA009X","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1336314.jpg?v=1766535967","url":"https:\/\/doublestackstore.com\/products\/spikes-st-9x-9mm-heavy-buffer","provider":"Double Stack Store","version":"1.0","type":"link"}