{"product_id":"stalker-ultimate-srs-upgrade-kit-420mm-2-0-2-5-joule","title":"Ultimate SRS Upgrade Kit (420mm Barrel 2.0-2.5 Joule)","description":"\u003cp\u003e\u003cstrong\u003eThe Ultimate Stalker Upgrade Kit to make your Silverback SRS a true sniper beast. This upgrade kit makes your SRS accurate, consistent, and silent! Load up your magazines and dominate the field like never before.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe package includes the following Stalker upgrades:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.nl\/en\/kraken-hopup-srs-ultimate-edition.html\" target=\"_blank\" rel=\"noopener\"\u003eStalker SRS Kraken Hop-Up Chamber - Ultimate Edition\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.nl\/en\/scorpion-piston-srs-ultimate-edition-1.html\" target=\"_blank\" rel=\"noopener\"\u003eStalker SRS Scorpion Piston - Ultimate Edition\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.nl\/en\/morpheus-dual-bore-hybrid-barrel.html\" target=\"_blank\" rel=\"noopener\"\u003eStalker Morpheus 420mm Inner Barrel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.nl\/en\/teflon-fluted-cylinder-for-srs-a1-a2.html\" target=\"_blank\" rel=\"noopener\"\u003eStalker SRS Fluted Teflon Cylinder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe strongly believe that Rapax springs are the best springs on the market. The results achieved with these springs and the Stalker upgrades are outstanding.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.skirmshop.nl\/en\/rms-2-joule-spring.html\" target=\"_blank\" rel=\"noopener\"\u003eRapax RMS 2+ Spring\u003c\/a\u003e (includes tensioners to increase FPS\/Joule if needed.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*Note: This upgrade discount is only available when all products are in stock. Click 'add to cart'; if all products are visible, you can purchase this kit with the mentioned discount. If the products are not visible in your shopping cart and you see a blank page, it means one of these products is not available.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eProduct Descriptions:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eKraken Hop-Up Chamber\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy setup for both experienced and new players (~2-minute bucking swap)\u003c\/li\u003e\n\u003cli\u003e100% self-alignment system for a perfectly straight setup\u003c\/li\u003e\n\u003cli\u003e100% straight \/ 100% seal patented Kraken bucking\u003c\/li\u003e\n\u003cli\u003eAdjustment wheel head cut-out for easy tuning\u003c\/li\u003e\n\u003cli\u003eO-ring guided adjustment wheel\u003c\/li\u003e\n\u003cli\u003eCustom-made steel hop arm screw\u003c\/li\u003e\n\u003cli\u003eLaser-engraved white letters and text\u003c\/li\u003e\n\u003cli\u003eFront O-ring to prevent BBs from falling into the receiver\u003c\/li\u003e\n\u003cli\u003eModular chamber design compatible with most VSR buckings, bridged\/unbridged barrels, and nubs\u003c\/li\u003e\n\u003cli\u003eModular arm section to swap and use S1, S2, and S3 arms\u003c\/li\u003e\n\u003cli\u003eV-groove island for upper outer barrel screw (SRS A1)\u003c\/li\u003e\n\u003cli\u003eV-groove for lower outer barrel screw (SRS A2)\u003c\/li\u003e\n\u003cli\u003eSide flat body cutouts for future Stalker products\u003c\/li\u003e\n\u003cli\u003eFast setup for easy inner barrel or bucking changes and barrel cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eSRS Scorpion Piston\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stalker Scorpion piston features an extremely modular design developed from scratch. It offers all the options players could want for their SRS piston. It is a unique concept where six weights form the piston body itself. Since the piston is built from these weights, it can also be extended with additional weights (short stroke), reducing cylinder volume and joule output accordingly.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMorpheus 420mm Inner Barrel\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Morpheus Hybrid Barrel is made from highly durable SUS304 stainless steel and features a Dualbore tapered end-crowning to enhance range and accuracy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe chose stronger, more durable seamless SUS304 steel to raise the standard. Most brands use SUS303 seamed steel because it is easier to machine. However, SUS303 stainless steel has reduced corrosion resistance due to its composition optimized for machinability. SUS304 is harder to machine but offers superior durability and excellent corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFluted Teflon Cylinder\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis cylinder is a fluted Teflon version of a standard cylinder and gives your SRS A1 or A2 an aggressive look. The inner coating is applied using a cold treatment process, ensuring the cylinder maintains its straight shape—unlike many heat-treated cylinders. Besides improved aesthetics, the special inner coating enhances energy transfer with the piston, which may increase joule output if your piston has the correct cup size.\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFully compatible with Silverback SRS A1 and A2 receivers\u003c\/li\u003e\n\u003cli\u003eThread compatible with both A1 and A2 bolt handles\u003c\/li\u003e\n\u003cli\u003eCompatible with aftermarket pistons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRapax 2J+ RMS Spring\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Rapax Modular Spring (RMS) series is manufactured to the same high-quality standards as the Light Pull series. Designed for durability and performance, it delivers an excellent sniper experience. Compared to the Light Pull series, RMS springs are significantly shorter, require slightly more force to pull, and provide quieter shots. Additionally, RMS springs are electrically coated to prevent rust and ensure smoother operation on the spring guide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eIf you have any issues or questions about this or other Stalker products, please visit our Stalker Owners Group on Facebook here: \u003ca href=\"https:\/\/www.facebook.com\/groups\/329589544772075\/\"\u003ehttps:\/\/www.facebook.com\/groups\/329589544772075\/\u003c\/a\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou can follow all live feeds, photos, and updates on Instagram, Facebook, or YouTube:\u003cbr\u003e\u003cbr\u003eFacebook: \u003ca href=\"https:\/\/www.facebook.com\/StalkerAirsoftDesigns\/\" target=\"_blank\" rel=\"noreferrer noopener\"\u003ehttps:\/\/www.facebook.com\/StalkerAirsoftDesigns\/\u003c\/a\u003e\u003cbr\u003eInstagram: \u003ca href=\"https:\/\/www.instagram.com\/stalkerairsoftdesigns\/\" target=\"_blank\" rel=\"noreferrer noopener\"\u003ehttps:\/\/www.instagram.com\/stalkerairsoftdesigns\/\u003c\/a\u003e\u003cbr\u003eYouTube: \u003ca href=\"https:\/\/www.youtube.com\/channel\/UCWsBiSHlu-lbcnGQWAkeJWQ\" target=\"_blank\" rel=\"noopener\"\u003ehttps:\/\/www.youtube.com\/channel\/UCWsBiSHlu-lbcnGQWAkeJWQ\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFor more information about Stalker products, tech, and crafting guides, please visit: \u003ca href=\"http:\/\/www.stalkerairsoft.com\/\" target=\"_blank\" rel=\"noopener\"\u003ewww.stalkerairsoft.com\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"STALKER","offers":[{"title":"Default Title","offer_id":52552186397013,"sku":"SP-STAL-172","price":339.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/package-420_b0236457-4724-41b0-b861-fcd247ee1601.jpg?v=1771967339","url":"https:\/\/www.skirmshop.es\/en-us\/products\/stalker-ultimate-srs-upgrade-kit-420mm-2-0-2-5-joule","provider":"Skirmshop Spain","version":"1.0","type":"link"}