{"product_id":"silverback-vks-hop-up-unit","title":"Silverback VKS Hop-Up Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eComplete hop-up chamber for the Silverback VKS.\u003c\/p\u003e\n\u003cp\u003eThe VKS uses the \u003cstrong\u003eSRS form factor\u003c\/strong\u003e with the \u003cstrong\u003eTDC\u003c\/strong\u003e adjustment philosophy introduced on the TAC-41: it keeps the same diameter and length as the SRS hop-up, but adds top-down adjustment for improved consistency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e the VKS hop-up chamber is only compatible with the dedicated VKS outer barrel.\u003c\/p\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC machined hop-up body (VKS-0206)\u003c\/li\u003e\n\u003cli\u003eAdjustment wheel in PA6-GF15MF25 (VKS-0202)\u003c\/li\u003e\n\u003cli\u003e0 µm nub, ABS (VKS-0203)\u003c\/li\u003e\n\u003cli\u003e250 µm nub, ABS (VKS-0204)\u003c\/li\u003e\n\u003cli\u003e500 µm nub, ABS (VKS-0205)\u003c\/li\u003e\n\u003cli\u003eAEG hop-up rubber 60° (HOP-116001)\u003c\/li\u003e\n\u003cli\u003eHardware (M4x5 ISO4027, M4x4 ISO4026, M3x4 ISO4026) and O-rings (8x2, 5.8x0.75)\u003c\/li\u003e\n\u003cli\u003eFlanged 2.38x3x4 ball plunger\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSilverback VKS (Silenced and Compact versions) — VKS outer barrel only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer reference: SBA-HOP-80\u003c\/li\u003e\n\u003cli\u003eEAN\/UPC: 810085566229\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOfficial VKS line release: 1 September 2026.\u003c\/em\u003e\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":54540401017173,"sku":null,"price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/SBA-HOP-80-1-S.jpg?v=1785935582","url":"https:\/\/www.skirmshop.es\/en-ca\/products\/silverback-vks-hop-up-unit","provider":"Skirmshop Spain","version":"1.0","type":"link"}