{"product_id":"maple-leaf-decepticons-hop-up-rubber-vsr-and-gbb","title":"Maple Leaf Decepticons Hop-Up Rubber — VSR and GBB","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;\"\u003eFour hardnesses, one air seal you can trust.\u003c\/strong\u003e The Decepticons bucking narrows the entrance so the BB seats against a tighter seal, then stiffens the lip with a steel C-clip so that seal holds shot after shot. It is the Transformers-series geometry aimed at gas platforms and VSR-pattern cocking rifles.\n\u003c\/div\u003e\u003cp\u003eMaple Leaf designed the Decepticons pad around a pressure point rather than a flat contact strip. The BB is gripped over a shaped area instead of a line, which is what keeps groups together once you push past the velocities where a stock bucking starts to drift.\u003c\/p\u003e\u003cp\u003eThe steel C-clip is the part worth paying attention to. A rubber lip on its own relaxes as it warms and as it ages, and a relaxed lip leaks; the clip holds the lip against the barrel window so the seal does not soften over a long game day.\u003c\/p\u003e\u003cp\u003eIt suits Tokyo Marui, WE and KJ gas pistols, WE gas blowback rifles, and VSR-10 pattern air cocking rifles. One caveat from the manufacturer: the pressure point geometry wants an open-type hop window, which is what Marui pistol barrels and most compatible barrels use.\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;\"\u003ePlatform\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMarui, WE and KJ GBB pistols, WE GBBR, VSR-10 pattern cocking rifles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eBarrel window\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eOpen-type hop window required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAir seal\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eSteel C-clip lip reinforcement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\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;\"\u003eRubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eHardness 50 degree\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eUp to 360 FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eHardness 60 degree\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003e295-390 FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eHardness 75 degree\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003e425-490 FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eHardness 80 degree\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003e490 FPS and above\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\u003e\u003cstrong\u003ePick the hardness from your velocity, not from the colour.\u003c\/strong\u003e A softer bucking at high velocity gets chewed and starts flyering; a hard bucking at low velocity never deforms enough to put spin on the BB. The spec table above lists the manufacturer's own FPS window for each option.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIt is cut for an open hop window.\u003c\/strong\u003e If your inner barrel has a bridged or part-closed window the pressure point sits in the wrong place and you lose the benefit. Marui pistol barrels and most aftermarket copies are open-type, and the \u003ca href=\"\/collections\/inner-barrels\" style=\"color:#1B3A6B;\"\u003einner barrels\u003c\/a\u003e section lists what we carry.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit it with the barrel out.\u003c\/strong\u003e Rolling a stiff bucking onto a barrel still inside the chamber is how lips get nicked. Take the barrel out, seat the bucking square, check the C-clip is sitting in its groove, then refit.\u003c\/p\u003e\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhich hardness should I order?\u003c\/strong\u003e\u003cbr\u003eMatch it to your muzzle velocity using the figures in the spec table. If you sit between two options, take the harder one for a gas gun that runs warm in summer and the softer one for a rifle you shoot in the cold, since silicone and rubber both stiffen as the temperature drops.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the C-clip for?\u003c\/strong\u003e\u003cbr\u003eIt is a steel ring moulded into the lip. Rubber relaxes with heat and age, and a relaxed lip lets air past the BB; the clip keeps the lip pressed to the barrel window so the seal stays consistent rather than fading through a game.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it fit my inner barrel?\u003c\/strong\u003e\u003cbr\u003eIt needs an open-type hop window. Tokyo Marui pistol barrels and the large majority of aftermarket barrels built to that pattern are fine. A bridged window will physically fit but puts the contact patch in the wrong place, so you will not see the gain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRubber or the silicone version?\u003c\/strong\u003e\u003cbr\u003eRubber is the all-round choice and holds its shape well in normal conditions. The silicone version of this bucking is the one to pick if you play through winter, because silicone stays flexible at low temperatures where rubber goes stiff.\u003c\/p\u003e\u003cdiv style=\"background:#fffbe6;border-left:4px solid #f0d060;padding:12px 16px;border-radius:0 6px 6px 0;margin:0 0 16px;font-size:13px;\"\u003e\n⚠ \u003cstrong\u003eHop rubbers are a consumable.\u003c\/strong\u003e A bucking is a wear part, not a lifetime upgrade. Check the lip for nicks and flat spots whenever you strip the hop unit, and replace it rather than trying to reshape it — a damaged lip is the usual cause of sudden unexplained flyers.\n\u003c\/div\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 Keep a spare in the softer hardness in your box bag. If the weather turns cold mid-day and groups open up, dropping one step softer often recovers the hop without touching the tensioner. More of the range sits in \u003ca href=\"\/collections\/hop-rubber\" style=\"color:#cdd6f4;\"\u003ehop up units and hop rubbers\u003c\/a\u003e.\n\u003c\/div\u003e","brand":"Maple Leaf","offers":[{"title":"50","offer_id":55709047325048,"sku":"92487154","price":9.95,"currency_code":"GBP","in_stock":true},{"title":"60","offer_id":55709050732920,"sku":null,"price":9.95,"currency_code":"GBP","in_stock":true},{"title":"70","offer_id":55709094707576,"sku":null,"price":9.95,"currency_code":"GBP","in_stock":true},{"title":"75","offer_id":55709050765688,"sku":null,"price":9.95,"currency_code":"GBP","in_stock":true},{"title":"80","offer_id":55709050798456,"sku":null,"price":9.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/MapleLeafDecepticonsHop-UpRubber_TitanForgeAirsoft-6.webp?v=1792669279","url":"https:\/\/www.titanforgeairsoft.com\/products\/maple-leaf-decepticons-hop-up-rubber-vsr-and-gbb","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}