{"product_id":"4uad-4uantum-magnus-pro-hop-up-chamber-apfg-mcx-gbb-series","title":"4UAD 4UANTUM Magnus Pro Hop-Up Chamber, APFG MCX GBB Series","description":"\n\u003ch2\u003e4UAD 4UANTUM Magnus Pro Hop-Up Chamber, APFG MCX GBB Series\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4UAD 4UANTUM Magnus Pro is a precision-machined TDC hop-up chamber designed for the APFG MCX GBB series. Its one-piece 6061 aluminum construction, true vertical hop-up adjustment and self-centering inner barrel mount are designed to improve shot consistency and the rigidity of the barrel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMagnus Pro combines precise hop-up adjustment with a redesigned mechanical structure. The chamber helps keep the inner barrel and hop-up contact point correctly aligned while reducing stress on the loading nozzle during cycling.\u003c\/p\u003e\n\n\u003ch3\u003eTrue TDC Hop-Up Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe true TDC (Top Dead Center) mechanism applies pressure to the hop-up bucking directly from above. Keeping the pressure point centered helps produce consistent backspin and reduces the possibility of unwanted sideways deviation.\u003c\/p\u003e\n\u003cp\u003eThe adjustment wheel is accessible through the openings in the handguard. This allows fine-tuning the hop-up without disassembling the rifle or using a dedicated adjustment tool.\u003c\/p\u003e\n\n\u003ch3\u003eSelf-Centering Inner Barrel Mount\u003c\/h3\u003e\n\u003cp\u003eMagnus Pro features a self-centering three-point inner barrel locking system. The design holds the inner barrel securely in position, helping maintain consistent alignment between the barrel and hop-up chamber.\u003c\/p\u003e\n\u003cp\u003eThe housing is CNC-machined from a single billet of 6061 aluminum. Since the hop-up chamber also forms part of the barrel-mounting interface on the APFG MCX platform, its rigid construction helps support the entire barrel assembly.\u003c\/p\u003e\n\n\u003ch3\u003eOptimized Cycling Geometry\u003c\/h3\u003e\n\u003cp\u003eThe chamber features revised contact geometry that allows it to interface with the bolt carrier rather than receiving repeated impacts directly from the loading nozzle. This helps reduce the risk of nozzle damage during operation.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Hop-Up Bucking\u003c\/h3\u003e\n\u003cp\u003eWe recommend pairing the Magnus Pro hop-up chamber with the \u003ca href=\"https:\/\/atom-airsoft.fi\/en-fi\/products\/4uad-4uantum-friction-pro-high-performance-gbb-bucking\"\u003e\u003cstrong\u003e4UAD 4UANTUM Friction Pro High Performance GBB Bucking\u003c\/strong\u003e\u003c\/a\u003e. Its centered contact patch complements the Magnus Pro's vertical TDC adjustment and precise bucking alignment, helping produce consistent backspin.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAPFG MCX Rattler GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX Legacy GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX SPEAR LT GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX Rattler LT GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX RSAR GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX SURG GBB\u003c\/li\u003e\n\u003cli\u003eAPFG MCX HUNTER GBB\u003c\/li\u003e\n\u003cli\u003eOther compatible APFG MCX GBB series models\u003c\/li\u003e\n\u003cli\u003eBPW MCX GBB models using the APFG MCX GBB system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility limitations:\u003c\/strong\u003e This chamber is not compatible with APFG MPX GBB, APFG XM7 (SPEAR) GBB or MCX GBB rifles from other manufacturers. Japanese-specification GBB inner barrels may also have incompatible mounting slots. The manufacturer specifically excludes PDI, KM and LayLax inner barrels of this specification.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: 4UAD\u003c\/li\u003e\n\u003cli\u003eProduct Series: 4UANTUM\u003c\/li\u003e\n\u003cli\u003eModel: Magnus Pro MCX\u003c\/li\u003e\n\u003cli\u003eProduct Code: 4UAD-TDC-005\u003c\/li\u003e\n\u003cli\u003eType: TDC hop-up chamber\u003c\/li\u003e\n\u003cli\u003eCompatibility: APFG MCX GBB series and compatible BPW MCX GBB models\u003c\/li\u003e\n\u003cli\u003eMaterial: CNC-machined 6061 aluminum\u003c\/li\u003e\n\u003cli\u003eHop-Up Adjustment: True vertical TDC\u003c\/li\u003e\n\u003cli\u003eInner Barrel Mount: Self-centering three-point locking system\u003c\/li\u003e\n\u003cli\u003eAdjustment Access: Through the handguard openings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNot Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHop-up bucking\u003c\/li\u003e\n\u003cli\u003eInner barrel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eManufacturer's Installation Guide and Videos\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/4uadsmartairsoft.com\/magnuspromcx\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e4UAD Magnus Pro MCX Installation Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=T8B_hwTgCS4\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e4UAD Magnus Pro MCX - Manufacturer Video 1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=voZPtc8X9e4\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e4UAD Magnus Pro MCX - Manufacturer Video 2\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"4UAD","offers":[{"title":"Default Title","offer_id":59848567488860,"sku":"4UAD-TDC-005","price":749.0,"currency_code":"PLN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/4UAD-TDC-005.jpg?v=1794403233","url":"https:\/\/atom-airsoft.fi\/en-pl\/products\/4uad-4uantum-magnus-pro-hop-up-chamber-apfg-mcx-gbb-series","provider":"Atom Airsoft","version":"1.0","type":"link"}