{"product_id":"action-army-vsr-10-hop-up-rubber","title":"Action Army VSR-10 Hop Up Rubber","description":"\u003cdiv style=\"background:#edfaf1;border-left:4px solid #27ae60;padding:12px 16px;border-radius:0 6px 6px 0;margin:0 0 16px;font-size:13px;\"\u003e\n\u003cstrong style=\"color:#1a6b3a;\"\u003eAction Army VSR-10 Hop Up Rubber — a silicone blend bucking that fits far more than the VSR it is named after.\u003c\/strong\u003e Marui standard, so it covers most of the pistol shelf too.\n\u003c\/div\u003e\u003cp\u003eThe hop rubber is where the BB actually gets its spin, and it is the single cheapest part that changes how a replica shoots. A tired bucking leaks air past the BB and loses the contact patch, and no amount of adjustment brings either back.\u003c\/p\u003e\u003cp\u003eAction Army make this one from a selected silicone rubber blend. Fitted properly, it is stated to tighten the seal and lift how the BB performs — which is the honest version of what a good bucking does: it holds pressure and it grips.\u003c\/p\u003e\u003cp\u003eThe fitment list is the surprise. Because it follows Marui dimensions it goes well beyond the VSR-10 and into most of the Marui-pattern pistol range, and a WE gas blowback M4 open bolt is listed among them too. One part, most of a gun bag. The full list is in the table below.\u003c\/p\u003e\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;margin:0 0 18px;\"\u003e\n\u003ctr style=\"background:#1B3A6B;color:#fff;\"\u003e\n\u003cth style=\"padding:7px 12px;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:7px 12px;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eFitment\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMarui standard replicas: VSR-10, Hi-Capa, Glock, PX4, FN5-7, P226, Detonics, M1911, MEU, SOCOM and similar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAlso stated to fit\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eWE GBB M4 open bolt replicas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eSelected silicone rubber blend\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eStated benefit\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eImproved seal and BB performance when correctly installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eManufactured by Action Army in Taiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eGood to know before you buy\u003c\/h2\u003e\u003cp\u003eCorrectly installed is doing work in that sentence. A bucking fitted with a twist or a trapped lip performs worse than the one it replaced, so take the time.\u003c\/p\u003e\u003cp\u003eIt is a wear part. If the rifle or pistol has done a season and the hop has become unpredictable, this is the first thing to change and the cheapest.\u003c\/p\u003e\u003cp\u003eThe fitment list is broad because it follows Marui dimensions. If your replica is a clone that deviates, it may not seat properly.\u003c\/p\u003e\u003cp\u003eNo hardness rating or weight is published by Action Army.\u003c\/p\u003e\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat does a hop rubber do?\u003c\/strong\u003e\u003cbr\u003eIt puts backspin on the BB and seals around it. Both of those decide how far and how straight the shot goes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it really fit all those pistols?\u003c\/strong\u003e\u003cbr\u003eIt follows Marui dimensions, and the published fitment runs well past the rifle into most of the Marui-pattern pistol range. The table above has it in full.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hardness is it?\u003c\/strong\u003e\u003cbr\u003eNot published. It is described as a selected silicone rubber blend without quoting a durometer figure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow often should I change it?\u003c\/strong\u003e\u003cbr\u003eWhen the hop stops being predictable, or after a hard season. It is a wear part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it raise my FPS?\u003c\/strong\u003e\u003cbr\u003eIt can, by sealing better. Re-chrono after fitting rather than assuming it will not.\u003c\/p\u003e\u003cdiv style=\"background:#1B3A6B;color:#fff;padding:12px 16px;border-radius:6px;margin:18px 0 0;font-size:13px;\"\u003e\n\u003cstrong style=\"color:#fff;\"\u003e💡 Titan Forge Airsoft tip:\u003c\/strong\u003e Buy a spare and keep it in the tool bag, because a split bucking ends a game day and this one fits most of what you own. More in \u003ca href=\"\/collections\/hop-rubber\" style=\"color:#cdd6f4;\"\u003ehop up units and rubbers\u003c\/a\u003e.\n\u003c\/div\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":55739584479608,"sku":"22207471","price":6.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/ActionArmyVSR-10HopUpRubber_TitanForgeAirsoft.webp?v=1794612958","url":"https:\/\/www.titanforgeairsoft.com\/products\/action-army-vsr-10-hop-up-rubber","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}