{"id":57988,"date":"2026-06-21T01:32:13","date_gmt":"2026-06-20T23:32:13","guid":{"rendered":"https:\/\/italytacticalshop.it\/product\/epes-vsr-sniper-vmp-piston-with-spring-guide-red\/"},"modified":"2026-09-01T07:46:04","modified_gmt":"2026-09-01T05:46:04","slug":"epes-vsr-sniper-vmp-piston-with-spring-guide-red","status":"publish","type":"product","link":"https:\/\/italytacticalshop.it\/en\/product\/epes-vsr-sniper-vmp-piston-with-spring-guide-red\/","title":{"rendered":"EPeS VSR Sniper VMP Piston with Spring Guide – Red"},"content":{"rendered":"

VMP piston with spring guide<\/strong> Of EPeS<\/strong> for airsoft sniper rifles VSR (TM VSR-10), Novritsch SSG10, CYMA CM.701 and others<\/strong>.<\/p>\n

4\u00d7 red weights (4.1 g) and 4\u00d7 silver weights (11.7 g)<\/strong> for quick and precise tuning.<\/p>\n

CNC piston with Variable Mass Piston (VMP) system.<\/strong><\/p>\n

CNC spring guide with bearing<\/strong> and spacer sleeve for smooth operation.<\/p>\n

CNC cylinder head with Sorbopad<\/strong> and piston guide rings to reduce noise.\u00a0<\/p>\n

EPeS VMP Piston with Spring Guide \u2013 Adjustable Performance for Bolt-Action Sniper Rifles<\/h5>\n

Are you looking for precision upgrade parts to increase the performance and accuracy<\/strong> of your bolt-action sniper rifle? Do you need a quick and repeatable piston weight adjustment<\/strong> to achieve the best results with your chosen BB weight? Then this EPeS Sniper upgrade set for VSR<\/strong> with VMP piston<\/strong> is the right choice. The set includes a CNC Variable Mass Piston<\/strong>, an CNC spring guide with bearing<\/strong> and spacer sleeve, precision piston guide rings<\/strong>, an CNC cylinder head with Sorbopad<\/strong> and a weight set (4 red, 4 silver)<\/strong>. Thanks to the slip-on design (non-threaded)<\/strong>, tuning is faster and easier. The correct balance of piston weight with cylinder volume and BB mass ensures quiet shots, increased range, and better consistency with heavier BBs (Joule creep effect)<\/strong>. Note: this is not a drop-in upgrade; plug-and-play<\/strong> \u2013 proper installation requires knowledge of bolt-action airsoft rifle mechanics<\/strong> and accurate tuning.<\/p>\n

Recommended Piston Weight Tuning Process<\/h5>\n
    \n
  1. Select the BB weight you want to optimize for (e.g., 0.43g, 0.49g).<\/li>\n
  2. Try weight combinations from lightest to heaviest and record the total piston mass.<\/li>\n
  3. For each configuration, fire 3\u20135 shots and record the average energy (Joule) while noting noise levels.<\/li>\n
  4. Choose the configuration with the highest stable power and acceptable noise.<\/li>\n
  5. Test the results in the field with the correct hop-up adjustment.<\/li>\n<\/ol>\n
    Key Features<\/h5>\n
      \n
    • Complete set:<\/strong>
      CNC VMP Piston, CNC spring guide with bearing and sleeve, CNC cylinder head with Sorbopad, piston guide rings.\n<\/li>\n
    • Variable piston weight:<\/strong>
      4 red weights (lighter) and 4 silver weights (heavier) for tuning options.\n<\/li>\n
    • Slip-on weights:<\/strong>
      Faster and easier tuning compared to threaded types.\n<\/li>\n
    • Noise reduction:<\/strong>
      Precision guide rings and Sorbopad reduce impact sound.\n<\/li>\n
    • Performance optimization:<\/strong>
      Configure the piston for higher energy with heavy BBs while keeping the rifle quiet.<\/li>\n<\/ul>\n
      Technical Specifications & Compatibility<\/h5>\n
        \n
      • Compatibility:<\/strong> Most VSR system replicas (Tokyo Marui VSR-10, WELL MB02\/03, JG BAR-10, Novritsch SSG10, CYMA CM.701, and others)<\/li>\n
      • Material:<\/strong> CNC steel and aluminum<\/li>\n
      • Weights:<\/strong> 4\u00d7 4.1g \/ 4\u00d7 11.7g<\/li>\n<\/ul>\n
        Package Contents<\/h5>\n
          \n
        • CNC VMP Piston<\/li>\n
        • CNC spring guide with bearing and spacer sleeve<\/li>\n
        • CNC cylinder head with Sorbopad<\/li>\n
        • Piston guide rings<\/li>\n
        • 4\u00d7 light red weights<\/li>\n
        • 4\u00d7 heavy silver weights<\/li>\n<\/ul>\n
          Warning<\/h5>\n
            \n
          • Incorrect installation or unsuitable weights can damage the cylinder or other components.<\/li>\n
          • For minimum noise and best performance, we recommend a precise fit of the piston rings to the cylinder (alternative ring sizes available as accessories).<\/li>\n
          • Verify compatibility with your specific rifle before installation.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

            VMP piston with spring guide by EPeS for airsoft sniper rifles VSR (TM VSR-10), Novritsch SSG10, CYMA CM.701 and more. 4\u00d7 red (4.1 g) and 4\u00d7 silver (11.7 g) weights for quick and precise tuning. CNC piston with\u2026<\/p>","protected":false},"featured_media":57989,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[80],"product_cat":[502,35],"product_tag":[],"class_list":["post-57988","product","type-product","status-publish","has-post-thumbnail","product_brand-epes","product_cat-gruppo-aria-pistoni-cilindri-ecc","product_cat-ricambi-e-interni-accessori-arma","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/product\/57988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/comments?post=57988"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/media\/57989"}],"wp:attachment":[{"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/media?parent=57988"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/product_brand?post=57988"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/product_cat?post=57988"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/italytacticalshop.it\/en\/wp-json\/wp\/v2\/product_tag?post=57988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}