{"product_id":"cyma-replacement-cylinder-for-sr-25-qbs-airsoft-aeg-rifles-model-ported-1","title":"CYMA Replacement Cylinder for SR-25 QBS Airsoft AEG Rifles (Model: Ported)","description":"\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-(--header-height)\" dir=\"auto\" tabindex=\"-1\" data-turn-id=\"9c19630a-5e13-4f6e-bd37-a55b616ff97f\" data-testid=\"conversation-turn-5\" data-scroll-anchor=\"false\" data-turn=\"user\"\u003e\u003c\/article\u003e\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" tabindex=\"-1\" data-turn-id=\"request-WEB:037818e3-d91f-4f96-adca-890b531424c2-2\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"true\" data-turn=\"assistant\"\u003e\r\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\r\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\r\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\r\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"c5cfc95d-a718-44a9-9996-86f33067d0e1\" data-message-model-slug=\"gpt-5-2\"\u003e\r\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\r\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\r\n\u003ch2 data-start=\"0\" data-end=\"68\"\u003eCYMA Replacement Ported Cylinder for SR-25 QBS Airsoft AEG Rifles\u003c\/h2\u003e\r\n\u003cp data-start=\"70\" data-end=\"359\"\u003eKeep your DMR platform running at peak efficiency with the \u003cstrong data-start=\"129\" data-end=\"198\"\u003eCYMA Replacement Ported Cylinder for SR-25 QBS Airsoft AEG Rifles\u003c\/strong\u003e. Designed as a factory-direct OEM component, this drop-in cylinder restores proper compression, air efficiency, and reliability to your SR-25 QBS gearbox setup.\u003c\/p\u003e\r\n\u003cp data-start=\"361\" data-end=\"561\"\u003eWhether you’re replacing a worn-out part or refreshing your compression system during a rebuild, this CYMA ported cylinder delivers dependable, consistent performance for precision-focused AEG builds.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"563\" data-end=\"566\"\u003e\r\n\r\n\u003ch3 data-start=\"568\" data-end=\"586\"\u003e🔧 Quick Specs\u003c\/h3\u003e\r\n\u003cul data-start=\"588\" data-end=\"865\"\u003e\r\n \t\u003cli data-start=\"588\" data-end=\"618\"\u003e\r\n\u003cp data-start=\"590\" data-end=\"618\"\u003e\u003cstrong data-start=\"590\" data-end=\"600\"\u003eModel:\u003c\/strong\u003e Ported Cylinder\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"619\" data-end=\"662\"\u003e\r\n\u003cp data-start=\"621\" data-end=\"662\"\u003e\u003cstrong data-start=\"621\" data-end=\"639\"\u003eCompatibility:\u003c\/strong\u003e SR-25 QBS AEG rifles\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"663\" data-end=\"703\"\u003e\r\n\u003cp data-start=\"665\" data-end=\"703\"\u003e\u003cstrong data-start=\"665\" data-end=\"678\"\u003eMaterial:\u003c\/strong\u003e Durable aluminum alloy\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"704\" data-end=\"739\"\u003e\r\n\u003cp data-start=\"706\" data-end=\"739\"\u003e\u003cstrong data-start=\"706\" data-end=\"718\"\u003eFitment:\u003c\/strong\u003e Drop-in OEM design\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"740\" data-end=\"799\"\u003e\r\n\u003cp data-start=\"742\" data-end=\"799\"\u003e\u003cstrong data-start=\"742\" data-end=\"759\"\u003eManufacturer:\u003c\/strong\u003e \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eCYMA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"800\" data-end=\"865\"\u003e\r\n\u003cp data-start=\"802\" data-end=\"865\"\u003e\u003cstrong data-start=\"802\" data-end=\"818\"\u003eApplication:\u003c\/strong\u003e Replacement \/ compression system restoration\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-start=\"867\" data-end=\"870\"\u003e\r\n\r\n\u003ch2 data-start=\"872\" data-end=\"920\"\u003eDesigned Specifically for SR-25 QBS Platforms\u003c\/h2\u003e\r\n\u003cp data-start=\"922\" data-end=\"1221\"\u003eSR-25 rifles utilize an extended gearbox system that differs from standard M4 AEG setups. The \u003cstrong data-start=\"1016\" data-end=\"1045\"\u003eQBS (Quick Buffer System)\u003c\/strong\u003e configuration found in many CYMA SR-25 models allows easier spring access and maintenance, but still relies on properly matched internal components for consistent performance.\u003c\/p\u003e\r\n\u003cp data-start=\"1223\" data-end=\"1332\"\u003eThis ported cylinder is engineered to match SR-25 QBS specifications, ensuring proper air volume balance for:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"1334\" data-end=\"1478\"\u003e\r\n \t\u003cli data-start=\"1334\" data-end=\"1372\"\u003e\r\n\u003cp data-start=\"1336\" data-end=\"1372\"\u003eMedium to long inner barrel builds\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1373\" data-end=\"1411\"\u003e\r\n\u003cp data-start=\"1375\" data-end=\"1411\"\u003eStandard DMR spring configurations\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1412\" data-end=\"1438\"\u003e\r\n\u003cp data-start=\"1414\" data-end=\"1438\"\u003eField-legal FPS setups\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1439\" data-end=\"1478\"\u003e\r\n\u003cp data-start=\"1441\" data-end=\"1478\"\u003eBalanced semi-auto precision rifles\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"1480\" data-end=\"1618\"\u003eBy maintaining the correct cylinder-to-barrel volume ratio, you ensure optimal compression efficiency and stable shot-to-shot consistency.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"1620\" data-end=\"1623\"\u003e\r\n\r\n\u003ch2 data-start=\"1625\" data-end=\"1666\"\u003ePorted Design for Optimized Air Volume\u003c\/h2\u003e\r\n\u003cp data-start=\"1668\" data-end=\"1836\"\u003eUnlike full cylinders designed for maximum air capacity, a \u003cstrong data-start=\"1727\" data-end=\"1746\"\u003eported cylinder\u003c\/strong\u003e regulates airflow by venting excess air at a specific point during the compression cycle.\u003c\/p\u003e\r\n\u003cp data-start=\"1838\" data-end=\"1874\"\u003eBenefits of a ported design include:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"1876\" data-end=\"2050\"\u003e\r\n \t\u003cli data-start=\"1876\" data-end=\"1936\"\u003e\r\n\u003cp data-start=\"1878\" data-end=\"1936\"\u003eImproved air efficiency with standard-length DMR barrels\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1937\" data-end=\"1962\"\u003e\r\n\u003cp data-start=\"1939\" data-end=\"1962\"\u003eReduced over-voluming\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1963\" data-end=\"1991\"\u003e\r\n\u003cp data-start=\"1965\" data-end=\"1991\"\u003eSmoother piston movement\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"1992\" data-end=\"2019\"\u003e\r\n\u003cp data-start=\"1994\" data-end=\"2019\"\u003eLower mechanical stress\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"2020\" data-end=\"2050\"\u003e\r\n\u003cp data-start=\"2022\" data-end=\"2050\"\u003eEnhanced gearbox longevity\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"2052\" data-end=\"2258\"\u003eWhen matched properly with your barrel length and spring strength, a ported cylinder can produce more consistent FPS readings and improved overall efficiency compared to an improperly matched full cylinder.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"2260\" data-end=\"2263\"\u003e\r\n\r\n\u003ch2 data-start=\"2265\" data-end=\"2303\"\u003eDurable Aluminum Alloy Construction\u003c\/h2\u003e\r\n\u003cp data-start=\"2305\" data-end=\"2456\"\u003eThis CYMA replacement cylinder is constructed from \u003cstrong data-start=\"2356\" data-end=\"2382\"\u003edurable aluminum alloy\u003c\/strong\u003e, providing a strong yet lightweight solution for your compression system.\u003c\/p\u003e\r\n\u003cp data-start=\"2458\" data-end=\"2493\"\u003eAluminum alloy construction offers:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"2495\" data-end=\"2673\"\u003e\r\n \t\u003cli data-start=\"2495\" data-end=\"2524\"\u003e\r\n\u003cp data-start=\"2497\" data-end=\"2524\"\u003eExcellent wear resistance\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"2525\" data-end=\"2570\"\u003e\r\n\u003cp data-start=\"2527\" data-end=\"2570\"\u003eReduced internal weight compared to steel\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"2571\" data-end=\"2601\"\u003e\r\n\u003cp data-start=\"2573\" data-end=\"2601\"\u003eSmooth compression surface\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"2602\" data-end=\"2626\"\u003e\r\n\u003cp data-start=\"2604\" data-end=\"2626\"\u003eCorrosion resistance\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"2627\" data-end=\"2673\"\u003e\r\n\u003cp data-start=\"2629\" data-end=\"2673\"\u003eLong service life under standard DMR loads\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"2675\" data-end=\"2793\"\u003eIt’s a reliable material choice for maintaining factory-level performance while keeping your gearbox cycling smoothly.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"2795\" data-end=\"2798\"\u003e\r\n\r\n\u003ch2 data-start=\"2800\" data-end=\"2833\"\u003eFactory Direct OEM Replacement\u003c\/h2\u003e\r\n\u003cp data-start=\"2835\" data-end=\"2986\"\u003eBecause this is a genuine \u003cstrong data-start=\"2861\" data-end=\"2923\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eCYMA\u003c\/span\u003e\u003c\/span\u003e OEM replacement part\u003c\/strong\u003e, it is manufactured to meet original SR-25 QBS specifications.\u003c\/p\u003e\r\n\u003cp data-start=\"2988\" data-end=\"2999\"\u003eThat means:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"3001\" data-end=\"3160\"\u003e\r\n \t\u003cli data-start=\"3001\" data-end=\"3034\"\u003e\r\n\u003cp data-start=\"3003\" data-end=\"3034\"\u003eProper dimensional tolerances\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3035\" data-end=\"3055\"\u003e\r\n\u003cp data-start=\"3037\" data-end=\"3055\"\u003eReliable fitment\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3056\" data-end=\"3089\"\u003e\r\n\u003cp data-start=\"3058\" data-end=\"3089\"\u003eConsistent internal finishing\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3090\" data-end=\"3160\"\u003e\r\n\u003cp data-start=\"3092\" data-end=\"3160\"\u003eDesigned compatibility with stock SR-25 QBS compression components\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"3162\" data-end=\"3330\"\u003eIf your original cylinder is scratched, worn, or suffering from compression loss, this replacement restores factory performance without requiring aftermarket guesswork.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"3332\" data-end=\"3335\"\u003e\r\n\r\n\u003ch2 data-start=\"3337\" data-end=\"3386\"\u003eDrop-In Design – Minimal Modification Required\u003c\/h2\u003e\r\n\u003cp data-start=\"3388\" data-end=\"3478\"\u003eOne of the biggest advantages of this CYMA replacement cylinder is its \u003cstrong data-start=\"3459\" data-end=\"3477\"\u003edrop-in design\u003c\/strong\u003e.\u003c\/p\u003e\r\n\u003cp data-start=\"3480\" data-end=\"3594\"\u003eIt requires little to no modification for installation in compatible SR-25 QBS gearboxes. This makes it ideal for:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"3596\" data-end=\"3723\"\u003e\r\n \t\u003cli data-start=\"3596\" data-end=\"3619\"\u003e\r\n\u003cp data-start=\"3598\" data-end=\"3619\"\u003eRoutine maintenance\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3620\" data-end=\"3635\"\u003e\r\n\u003cp data-start=\"3622\" data-end=\"3635\"\u003eRepair work\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3636\" data-end=\"3656\"\u003e\r\n\u003cp data-start=\"3638\" data-end=\"3656\"\u003eGearbox rebuilds\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3657\" data-end=\"3695\"\u003e\r\n\u003cp data-start=\"3659\" data-end=\"3695\"\u003eWarranty-safe internal restoration\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3696\" data-end=\"3723\"\u003e\r\n\u003cp data-start=\"3698\" data-end=\"3723\"\u003eTech bench replacements\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"3725\" data-end=\"3899\"\u003eWhile professional installation is always recommended for internal AEG work, experienced technicians will appreciate the straightforward fitment and reliable OEM spec sizing.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"3901\" data-end=\"3904\"\u003e\r\n\r\n\u003ch2 data-start=\"3906\" data-end=\"3918\"\u003eIdeal For\u003c\/h2\u003e\r\n\u003cp data-start=\"3920\" data-end=\"3956\"\u003eThis ported cylinder is perfect for:\u003c\/p\u003e\r\n\r\n\u003cul data-start=\"3958\" data-end=\"4161\"\u003e\r\n \t\u003cli data-start=\"3958\" data-end=\"3993\"\u003e\r\n\u003cp data-start=\"3960\" data-end=\"3993\"\u003eRestoring SR-25 QBS compression\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"3994\" data-end=\"4033\"\u003e\r\n\u003cp data-start=\"3996\" data-end=\"4033\"\u003eReplacing worn or damaged cylinders\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"4034\" data-end=\"4076\"\u003e\r\n\u003cp data-start=\"4036\" data-end=\"4076\"\u003eMaintaining field-compliant FPS builds\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"4077\" data-end=\"4123\"\u003e\r\n\u003cp data-start=\"4079\" data-end=\"4123\"\u003eDMR rifles running standard barrel lengths\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n \t\u003cli data-start=\"4124\" data-end=\"4161\"\u003e\r\n\u003cp data-start=\"4126\" data-end=\"4161\"\u003ePreventative maintenance upgrades\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp data-start=\"4163\" data-end=\"4340\"\u003eIf your SR-25 is experiencing inconsistent FPS, reduced range, or air seal issues, replacing the cylinder can be a key step in rebuilding a properly balanced compression system.\u003c\/p\u003e\r\n\r\n\r\n\u003chr data-start=\"4342\" data-end=\"4345\"\u003e\r\n\r\n\u003ch2 data-start=\"4347\" data-end=\"4396\"\u003eWhy Choose the CYMA SR-25 QBS Ported Cylinder?\u003c\/h2\u003e\r\n\u003cp data-start=\"4398\" data-end=\"4663\"\u003e✔ Designed specifically for SR-25 QBS platforms\u003cbr data-start=\"4445\" data-end=\"4448\"\u003e✔ Ported configuration for balanced air efficiency\u003cbr data-start=\"4498\" data-end=\"4501\"\u003e✔ Durable aluminum alloy construction\u003cbr data-start=\"4538\" data-end=\"4541\"\u003e✔ OEM factory-direct replacement\u003cbr data-start=\"4573\" data-end=\"4576\"\u003e✔ Drop-in design with minimal modification\u003cbr data-start=\"4618\" data-end=\"4621\"\u003e✔ Ideal for DMR and precision AEG builds\u003c\/p\u003e\r\n\u003cp data-start=\"4665\" data-end=\"4955\"\u003eWhen maintaining or rebuilding your SR-25 QBS rifle, using the correct compression components is critical. The CYMA Replacement Ported Cylinder ensures proper air balance, reliable cycling, and long-term durability — keeping your designated marksman platform performing exactly as intended.\u003c\/p\u003e\r\n\u003cp data-start=\"4957\" data-end=\"5031\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eRestore performance. Maintain consistency. Keep your SR-25 running strong.\u003c\/p\u003e\r\n\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/article\u003e","brand":"CYMA","offers":[{"title":"Default Title","offer_id":47468134334694,"sku":"CQC-033","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/6393\/2390\/files\/fe3689f6-cyma-101040-removebg-preview.png?v=1774002177","url":"https:\/\/ngrwzj-i1.myshopify.com\/products\/cyma-replacement-cylinder-for-sr-25-qbs-airsoft-aeg-rifles-model-ported-1","provider":"CQC Airsoft ","version":"1.0","type":"link"}