{"title":"TAC-41 Springs \u0026 Guides","description":"\u003cp\u003eUpgrade springs, spring guides, spring-guide stoppers, FPS rings and power tuning springs for Silverback TAC-41 rifles.\u003c\/p\u003e","products":[{"product_id":"skirmshop-tac-41-power-upgrade-2-8j","title":"TAC41 2.8J Power Upgrade","description":"\u003cp\u003e\u003cstrong\u003eThis upgrade kit will make your Silverback TAC-41, TAC41-A, TAC41-P, TAC41-PS, TAC41L, TAC41LS more consistent, stable, quieter, and provide a smoother bolt pull. In addition, it will allow you to adjust the power to 2.81J. The package includes the following:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.es\/es\/piston-scorpion-tac41-guia-de-muelle.html\"\u003eScorpion Piston - TAC41 + Spring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.es\/es\/rapax-28-j-spring-made-for-srstac41ssgvsr.html\"\u003e2.8J Spring - Made for - SRS \/ TAC41 \/ SSG \/ VSR\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.skirmshop.es\/es\/anillos-guia-para-cilindro-tac-41-rojo.html\"\u003eTAC-41 Cylinder Guide Rings - Red\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct descriptions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eScorpion Piston for TAC41\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Stalker Scorpion piston features an extremely modular design that was created from scratch on my drawing board a long time ago. It includes all the options players could want for their TAC-41 piston. It is a unique concept where 6 weights form the body itself and, since the piston is made up of these weights, it is also possible to extend the piston with additional weights (short stroke), which in turn reduces your cylinder volume and joule output.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRapax 2.8J Spring\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuilt with durability and quality in mind, they are made to provide you with the best sniper experience.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eStalker Red Rings for TAC-41\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAchieve a smoother bolt pull.\u003c\/p\u003e\n\u003cp\u003eFor more information about Stalker products, technical guides, and manufacturing details, please visit: \u003ca href=\"http:\/\/www.stalkerairsoft.com\/\" target=\"_new\" rel=\"noreferrer\"\u003ewww.stalkerairsoft.com\u003c\/a\u003e\u003c\/p\u003e","brand":"STALKER","offers":[{"title":"Default Title","offer_id":52550747586901,"sku":"SP-STAL-TAC41 Power Upgrade  2.8J","price":124.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/1592ba30-9ad8-4ddc-894b-89e1d31beba5_77ef8201-d0d5-4be7-a21c-da0a26043785.webp?v=1771972922"},{"product_id":"silverback-tac-41-match-trigger-unit-aluminium","title":"TAC41 Upgraded Conical Trigger Springs","description":"\u003cp\u003eTAC-41 Match Trigger,\u003c\/p\u003e\n\u003cp\u003e6000 series aluminum, CNC machined, black and red hard anodized, mounted on two 10×4 bearings.\u003c\/p\u003e\n\u003cp\u003eSteel trigger axis.\u003c\/p\u003e\n\u003cp\u003eThis allows adjustment of the following:\u003c\/p\u003e\n\u003cp\u003e– trigger height\u003cbr\u003e– trigger angle\u003c\/p\u003e\n\u003cp\u003eWeight: 20 grams\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52550840615253,"sku":"SP-ST-TAC41-006","price":8.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/image_c3ecef7e-3b53-463f-ac76-a908d7fd0ec6.jpg?v=1771971914"},{"product_id":"rapax-aps2-spring-1joule","title":"APS2 Spring (1 Joule\/Brown) - SRS\/TAC41\/SSG\/VSR","description":"\u003cp\u003eHandmade Rapax springs: manufactured in Europe to provide the best and quietest performance for your sniper airsoft replica such as SRS\/VSR\/SSG24.\u003c\/p\u003e\n\u003cp\u003eConfirmed results of reaching 1 Joule with a standard SRS\/VSR\/SSG. FPS may vary depending on the configuration used in SRS, SSG24 or VSR-10.\u003c\/p\u003e\n\u003cp\u003eIf the Rapax spring is too powerful for your field limits, you can trim a few coils without damaging the integrity of the spring, as long as it is done correctly.\u003c\/p\u003e\n\u003cp\u003eThe first thing you will notice is a lighter pull compared to standard springs — in short: less effort for more joules.\u003c\/p\u003e\n\u003cp\u003eAll springs have the same length, use the same material, and have the same number of coils, etc.\u003c\/p\u003e\n\u003cp\u003eThe wire used in the production of Rapax springs is of the highest quality, ensuring a longer service life compared to other springs.\u003c\/p\u003e\n\u003cp\u003eThe heat treatment of these springs is carried out in a way that guarantees a long lifespan and very minimal FPS\/joule loss over time.\u003c\/p\u003e\n\u003cp\u003eThe springs are manufactured with strict diameter tolerances, preventing the \"twang\" sound in sniper airsoft replicas.\u003c\/p\u003e\n\u003cp\u003e*Only compatible with 9MM spring guides*\u003c\/p\u003e","brand":"Rapax","offers":[{"title":"Default Title","offer_id":52550973784405,"sku":"SP-RAP-09","price":19.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/image_a92d5c11-836b-4309-83e8-0809048c4cc8.png?v=1771970634"},{"product_id":"stalker-tac41-spring-scorpion-guide","title":"TAC41 Scorpion Spring Guide","description":"\u003cp\u003e\u003cstrong\u003eTAC41 Scorpion Spring Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade of polished stainless steel\u003c\/li\u003e\n\u003cli\u003eLaser-engraved STALKER logo\u003c\/li\u003e\n\u003cli\u003ePerfectly tuned for Rapax and APS2 springs\u003c\/li\u003e\n\u003cli\u003e9 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you have any issues or questions about this or other Stalker products, please visit our Stalker Owners Facebook group here:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\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 my live streams, photos, and updates on my Instagram, Facebook, or YouTube channels here:\u003c\/p\u003e\n\u003cp\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\u003eFor more information about Stalker products, technical guides, and build guides, visit:\u003cb\u003e\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":52551007568213,"sku":"SP-STAL-43-1.2","price":29.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/image_48a28c50-87f2-494b-9c1e-5f6bbf34a73d.jpg?v=1771970465"},{"product_id":"stalker-tac41-piston-scorpion-upgrade","title":"Scorpion Piston - TAC41 + Spring Guide","description":"\u003cp\u003e\u003cstrong\u003eThe new Stalker Scorpion piston for the TAC41!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModular piston with adjustable weight (from ~65 to 148 grams)\u003c\/li\u003e\n\u003cli\u003eSilences your TAC41\u003c\/li\u003e\n\u003cli\u003eIncreases joule\/FPS consistency\u003c\/li\u003e\n\u003cli\u003eAdjustable airbrakes for optimal fine-tuning\u003c\/li\u003e\n\u003cli\u003eOptional short-stroke setup for your TAC41 for faster reloads and a shorter bolt pull\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThe piston includes 2 adjustable airbrakes for optimal fine-tuning based on your setup.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 short 3.80 mm airbrake (optimal for 2J and 3J~ or higher upgrades).\u003c\/li\u003e\n\u003cli\u003e1 long 3.80 mm airbrake (optimal for 2J~ or lower upgrades).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe included airbrakes are designed to work with the standard TAC41 cylinder head. If you are using the GBB hop unit or the TAC41 Kraken, you must purchase the thicker airbrakes.\u003c\/p\u003e\n\u003cp\u003eA High Joule cup (shiny) is included for higher joule output and a lighter bolt pull.\u003cbr\u003eUse lubricant for perfect results; we recommend motor oil, silicone grease, or similar. As a reference, a Rapax Lightpull Blue 2J+ spring achieves approximately 2.2–2.3~ joules in a TAC41 with a Stalker TAC41 cylinder and a 420 mm inner barrel. The original cylinder will produce lower joules. Results may vary depending on the cylinder used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGolden installation rules\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eAlways apply a drop of oil or silicone grease to the edge of the head to achieve optimal joules.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor 2.3J setups, we recommend starting with the short airbrake fully unscrewed.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFor 2.8J+ setups, we recommend starting with the short airbrake fully screwed in.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlways set your hop-up correctly for your desired BB weight and adjust it to shoot straight.\u003c\/li\u003e\n\u003cli\u003eMore joules = shorter airbrake\u003c\/li\u003e\n\u003cli\u003eLess joules = longer airbrake\u003c\/li\u003e\n\u003cli\u003eChoose your airbrake and start low, then increase (unscrew) gradually until the setup is quiet.\u003c\/li\u003e\n\u003cli\u003eWhen you begin to lose joules, you know you are just past the perfect airbrake position. Screw it back in slightly to regain joules and achieve the quietest setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProper setups require adjustable airbrakes because too many parts in your rifle can change the piston acceleration speed. Piston weight, spring power, bucking hardness, barrel length, etc. We also recommend purchasing some spring guide spacers to fine-tune piston weight and spring joules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded in this kit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x Stalker stainless steel spring guide (with engraved Stalker logo)\u003c\/li\u003e\n\u003cli\u003e1x High Joule piston head (shiny)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1x Aluminum piston head\u003c\/li\u003e\n\u003cli\u003e1x Stainless steel piston head\u003c\/li\u003e\n\u003cli\u003e5x Aluminum weights\u003c\/li\u003e\n\u003cli\u003e4x Stainless steel weights\u003c\/li\u003e\n\u003cli\u003eSear and end cap made of stainless steel (rainbow finish)\u003c\/li\u003e\n\u003cli\u003e2 adjustable airbrakes (long and short)\u003c\/li\u003e\n\u003cli\u003e1x nut to lock the airbrake setting\u003c\/li\u003e\n\u003cli\u003e10 O-rings to place between weights or the head to prevent weights from loosening\u003c\/li\u003e\n\u003cli\u003eFront and rear POM guide rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDetailed information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Scorpion piston is a unique concept where 6 weights form the actual body. Since the piston itself is made up of these weights, it is also possible to extend the piston with additional weights (short-stroke), which reduces your cylinder volume and joule output, but shortens the bolt pull of your TAC41 with each added weight—at the cost of joule output, which can be compensated with a stronger spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe piston comes with 9 body weights that are interchangeable to perfectly configure your TAC41.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 black anodized aluminum body weights\u003c\/strong\u003e, each piece weighs: 3 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 polished stainless steel body weights\u003c\/strong\u003e, each piece weighs: 11 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn addition, the piston also includes 2 head weight versions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x Black anodized aluminum head weighing: 7 grams\u003c\/li\u003e\n\u003cli\u003e1x Polished stainless steel head weighing: 17 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eList of \u003cstrong\u003e6-piece configurations\u003c\/strong\u003e:\u003cbr\u003e\u003cem\u003e(The fifth stainless steel mid-section weight is sold separately if you wish to use full heavy steel configurations)\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTAC41 Scorpion 62g (1 aluminum head, 5 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 76g (1 aluminum head, 1 steel mid-section, 4 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 80g (1 steel head, 5 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 89g (1 aluminum head, 2 steel mid-sections, 3 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 93g (1 steel head, 1 steel mid-section, 4 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 102g (1 aluminum head, 3 steel mid-sections, 2 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 107g (1 steel head, 2 steel mid-sections, 3 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 115g (1 aluminum head, 4 steel mid-sections, 1 aluminum mid-section)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 119g (1 steel head, 3 steel mid-sections, 2 aluminum mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 128g (1 aluminum head, 5 steel mid-sections)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 133g (1 steel head, 4 steel mid-sections, 1 aluminum mid-section)\u003c\/li\u003e\n\u003cli\u003eTAC41 Scorpion 145g (1 steel head, 5 steel mid-sections)\u003cbr\u003e\u003cem\u003eThis configuration requires a fifth stainless steel mid-section, sold separately.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBoth airbrakes are secured with a nut under the cup against the piston head to keep them in place after adjustment. The adjustable airbrake is designed to control piston speed at the end of its stroke, reduce cylinder air release time, and minimize piston impact noise when it hits the head. A Sorbo pad on the head can still be used with this piston.\u003c\/p\u003e\n\u003cp\u003eBasically, whether you prefer a plug-and-play piston or you are an expert fine-tuning piston weights and airbrakes for maximum performance, the Stalker Scorpion is your best friend.\u003c\/p\u003e\n\u003cp\u003eIf you have any issues or questions about this or other Stalker products, visit our Stalker owners group on Facebook here:\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.facebook.com\/groups\/329589544772075\/\u003c\/p\u003e\n\u003cp\u003eYou can follow all my live streams, photos, and updates on my Instagram, Facebook, or YouTube channels here:\u003c\/p\u003e\n\u003cp\u003eFacebook: https:\/\/www.facebook.com\/StalkerAirsoftDesigns\/\u003cbr\u003eInstagram: https:\/\/www.instagram.com\/stalkerairsoftdesigns\/\u003cbr\u003eYoutube: https:\/\/www.youtube.com\/channel\/UCWsBiSHlu-lbcnGQWAkeJWQ\u003c\/p\u003e\n\u003cp\u003eFor more information about Stalker products, tech guides, and builds, visit: www.stalkerairsoft.com\u003c\/p\u003e","brand":"STALKER","offers":[{"title":"Default Title","offer_id":52551007797589,"sku":"SP-STAL-43-1.1","price":99.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/image_a4511ffb-0d14-4ee5-9c9e-aad1fe75a019.jpg?v=1771970459"},{"product_id":"silverback-aps-spring-60-newton","title":"APS 13mm Spring - 60 Newton (SRS \u0026 TAC-41)","description":"\u003cp\u003eAPS 13 mm spring, 60 Newtons. This spring follows the “APS 13 mm standard” (for a 9 mm outer diameter spring guide). It fits any rifle compatible with this standard, including all SRS models (except the push bolt mechanism) and all TAC-41 rifles. When compressed to 99 mm in length, it delivers 60 Newtons (+\/- 5%, approximately 9 kg of force). This spring features a black electrophoresis coating and laser marking for quick spring identification.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52551202472277,"sku":"SP-SBA-SPR-3060","price":12.25,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spr-30902_094ab860-cc86-4823-9c5f-a4bb624267de.jpg?v=1771968927"},{"product_id":"silverback-tac41-tool-spring-guide","title":"TAC-41 Spring Guide Retainer Tool","description":"\u003cp\u003eThis tool has been designed for players who frequently remove the bolt from their TAC-41, typically to store it in a hard case, but also for technicians who appreciate quality tools. CNC-machined stainless steel construction, including a black Vauban bolt knob (SBA-BKB-09). This tool can accept any bolt knob from our catalog as a handle.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552200716629,"sku":"SP-SBA-TWS-30","price":14.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/tws-301_93ee892c-250b-4a20-88e3-04e59b6f1561.jpg?v=1771967293"},{"product_id":"silverback-aps-spring-srs-tac41-150-newton","title":"APS 13mm Spring - 150 Newton (SRS \u0026 TAC-41)","description":"\u003cp\u003eAPS 13 mm, 150 Newton spring. This spring follows the “APS 13 mm standard” (for a 9 mm outer diameter spring guide). It fits any rifle compatible with this standard, including all SRS models (except the push mechanism) and all TAC-41 models. When compressed to a length of 99 mm, it delivers 150 Newtons (+\/- 5%, approximately 9 kg of force). This spring features a black electrophoresis coating and laser marking for quick identification.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552201404757,"sku":"SP-SBA-SPR-3150","price":15.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spr-31502_760c34be-f953-4e4d-8df2-db38b43cfc4b.jpg?v=1771967290"},{"product_id":"silverback-aps-13mm-spring-120-newton","title":"APS 13mm Spring - 120 Newton (SRS \u0026 TAC-41)","description":"\u003cp\u003eAPS 13 mm, 120 Newton spring. This spring follows the “APS 13 mm standard” (for 9 mm outer diameter spring guides). It fits any rifle compatible with this standard, including all SRS (except the push bolt mechanism) and all TAC-41 models. When compressed to a length of 99 mm, it delivers 120 Newtons (+\/- 5%, approximately 9 kg of force). This spring features a black electrophoresis coating and laser marking for quick spring identification.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552256029013,"sku":"SP-SBA-SPR-3120","price":15.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spr-31202_8adc8815-3392-4428-b453-85da849a367a.jpg?v=1771967288"},{"product_id":"silverback-aps-13mm-spring-100-newton","title":"APS 13mm Spring - 100 Newton (SRS \u0026 TAC-41)","description":"\u003cp\u003eAPS 13 mm, 100 Newton spring. This spring follows the “APS 13 mm standard” (for a 9 mm outer diameter spring guide). It fits any rifle compatible with this standard, including all SRS models (except the push bolt mechanism) and all TAC-41 models. When compressed to 99 mm in length, it delivers 100 Newtons (+\/- 5%, approximately 9 kg of force). This spring features a black electrophoretic coating and laser marking for quick identification.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552257274197,"sku":"SP-SBA-SPR-3100","price":15.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spr-31002_9d57974d-d314-4980-a98e-d205b9210177.jpg?v=1771967285"},{"product_id":"silverback-aps-13mm-spring-90-newton","title":"APS 13mm Spring - 90 Newton (SRS \u0026 TAC-41)","description":"\u003cp\u003eAPS 13 mm spring, 90 Newtons. This spring follows the “APS 13 mm standard” (for a spring guide with a 9 mm outer diameter). It fits any rifle compatible with this standard, including all SRS models (except the push bolt mechanism) and all TAC-41 models. When compressed to a length of 99 mm, it delivers 90 Newtons (+\/- 5%, around 9 kg of force). This spring features a black electrophoresis coating and laser marking for quick identification.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552257995093,"sku":"SP-SBA-SPR-3090","price":15.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spr-30902_f8073a50-64d9-4473-9eaa-3119d0d753c9.jpg?v=1771967283"},{"product_id":"rapax-srs-tac41-vsr-spring-2-8j","title":"2.8J Spring for SRS \/ TAC41 \/ SSG \/ VSR","description":"\u003cp\u003eMade to comply with regulations in the USA, Canada, Spain, Austria, and all other countries with a 2.8J sniper limit.\u003c\/p\u003e\n\u003cp\u003eThe springs have an outer diameter of 13 mm, compatible with all mentioned sniper replicas.\u003c\/p\u003e\n\u003cp\u003eIncludes a spring spacer to ensure you reach your legal limit, as not all setups are perfectly calibrated.\u003c\/p\u003e\n\u003cp\u003eOur springs are manufactured in Europe using the highest-quality spring wire available. Galvanized to prevent rust, reduce friction, and extend service life compared to standard springs.\u003c\/p\u003e\n\u003cp\u003eConfirmed results: Achieves 2.8J with a standard 16\" SRS and SSG10 (430 mm barrel). Joules may vary based on barrel length and piston used.\u003c\/p\u003e\n\u003cp\u003eIf the Rapax spring is too hot for your field, you can safely cut a few coils without compromising spring integrity, provided it's done correctly.\u003c\/p\u003e","brand":"Rapax","offers":[{"title":"Default Title","offer_id":52552427798869,"sku":"SP-RAP-03","price":17.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/whatsapp-image-2021-07-08-at-100309-1_41364ac2-2e60-4e65-86b9-7051ee7e6eaa.jpg?v=1771966957"},{"product_id":"silverback-tac-41-spring-guide-stopper","title":"TAC 41 Spring Guide Stopper","description":"\u003cp\u003eTAC 41 Spring Guide Stopper\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552433238357,"sku":"SP-SBA-SGS-01","price":15.15,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/silverback-tac-41-spring-guide-stopper_e8dd5d57-7f84-402f-a5b0-058ed526efc4.jpg?v=1771966867"},{"product_id":"silverback-tac-41-spring-guide","title":"TAC-41, Stainless steel Spring Guide","description":"\u003cp\u003eTAC-41 spring guide.\u003c\/p\u003e\n\u003cp\u003eFully CNC machined from stainless steel.\u003c\/p\u003e\n\u003cp\u003eIncludes push bearing.\u003c\/p\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":52552436023637,"sku":"SP-SBA-BSG-30","price":31.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/sba-bsg-301.jpg?v=1771966806"},{"product_id":"aps2-type-13mm-spring-srs-pull-version-75-newton","title":"APS2 type 13mm Spring SRS Pull Version (75 Newton)","description":"\u003cp\u003eAPS 13mm large type spring (for SRS pull bolt version)\u003c\/p\u003e\n\u003cp\u003e13 mm outside diameter, 11 mm inside.\u003c\/p\u003e\n\u003cp\u003eOur spring are named by the force, in Newton, needed to compress it to their “shooting stage”\u003c\/p\u003e\n\u003cp\u003eAPS large type (can be use in SRS, TAC-41, APS-2, APS-T96, APS-SR2, M24).\u003c\/p\u003e\n\u003cp\u003eData in spring charts are average, there might be variation due to multiple factors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e75 Newton : SBA-SPR-11\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Silverback","offers":[{"title":"Default Title","offer_id":53773454377301,"sku":"SP-SBA-SPR-3075","price":11.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/files\/spring.jpg?v=1777240018"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/3607\/7909\/collections\/whatsapp-image-2021-07-08-at-100309-1_203317d5-0ee1-4420-be6c-3e5093de8371.jpg?v=1779069036","url":"https:\/\/www.skirmshop.es\/en-us\/collections\/tac-41-springs-guides.oembed","provider":"Skirmshop Spain","version":"1.0","type":"link"}