{"product_id":"luth-ar-carbine-gas-tube","title":"Luth-AR Carbine Gas Tube – AR-15 Carbine-Length Systems","description":"\u003cp\u003eThe Luth-AR Carbine Gas Tube is a direct replacement for worn or damaged gas tubes in AR-15 carbine-length gas systems. Gas tubes direct propellant gases from the barrel's gas port to the bolt carrier group, cycling the action. Over time, gas tubes can develop erosion, dents, or corrosion that affect reliability—this tube restores proper function at a fraction of the cost of factory parts.\u003c\/p\u003e\u003cp\u003eManufactured from stainless steel with a corrosion-resistant finish, this tube fits standard carbine-length gas systems (9.75\" from gas port to upper receiver). Installation requires removal of the handguard and gas block, plus a roll pin punch—most experienced shooters can complete the swap in 15–20 minutes. A gas tube roll pin is included.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Gas Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 carbine-length gas systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Corrosion-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in (requires handguard and gas block removal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Gas tube roll pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":47938426831103,"sku":"LUTHBL-04A","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1290059.jpg?v=1766514450","url":"https:\/\/doublestackstore.com\/products\/luth-ar-carbine-gas-tube","provider":"Double Stack Store","version":"1.0","type":"link"}