{"product_id":"wolverine-airsoft-mtw-billet-upper-receiver-kit","title":"Wolverine Airsoft MTW Billet Upper Receiver Kit","description":"\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\u003e⚠ Custom build component — limited quantity.\u003c\/strong\u003e This is the upper receiver kit only. You will need to source a compatible MTW-Spec engine, hop-up chamber, outer barrel, and rail separately. This is not a complete or functional upper out of the box. Call us before ordering if you want to talk through the full build spec.\u003c\/div\u003e\n\n\u003cp\u003eThe MTW Billet upper receiver is CNC machined from solid aluminium billet — the same process used on the standard Billet Series rifles, which produces a stronger part than cast aluminium because it’s cut from a single uninterrupted block. The Billet receiver features Wolverine’s “Intrinsic Alignment” design, where the upper is machined to precise tolerances that hold the HPA engine with no room for movement or misalignment. This is one of the core reasons MTW accuracy is as consistent as it is — the engine, hop-up, and barrel are held in perfect alignment by the receiver itself, not by shimming or adjustment.\u003c\/p\u003e\n\n\u003cp\u003eThis kit includes the upper receiver body and the Gen 3 M4 feed tube (MTW-M-327). The feed tube is the component that routes BBs from the magazine into the hop-up chamber — three generations exist, and this is the current standard. Gen 3 feed tubes are compatible with most aftermarket barrels and hop-ups including the Maxx M4W chamber. Gen 1 feed tubes (pre-October 2021 Billet Series) are not compatible with these aftermarket upgrade barrels.\u003c\/p\u003e\n\n\u003cp\u003eGenuine Wolverine Airsoft part (MTW-A-247-SKU). Limited quantity available — when these are gone, they may not return to stock.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eSpecifications\u003c\/h2\u003e\n\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;\"\u003ePart number\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMTW-A-247-SKU\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eIncluded feed tube\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eGen 3 M4 feed tube (MTW-M-327)\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;\"\u003eCNC machined billet aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAlignment\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eIntrinsic alignment — engine held to zero-tolerance fit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eCompatible engines\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAll MTW-Spec HPA engines (INFERNO Gen 2, XTS, REAPER)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eCompatible hop-ups\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMTW-Spec rotary hop, Maxx M4W, other MTW-Spec chambers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\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 Building a custom MTW upper is a rewarding project, but the component list adds up and compatibility matters at every step. We build and service MTW platforms daily. Call us on 01494 911990 before ordering any parts — we can walk through your full build spec, flag anything that won’t work together, and make sure you order exactly what you need and nothing you don’t.\n\u003c\/div\u003e","brand":"Wolverine Airsoft","offers":[{"title":"Default Title","offer_id":55505993564536,"sku":"69917900","price":195.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/MTW-Upper-Receiver-Kit.jpg?v=1773920523","url":"https:\/\/www.titanforgeairsoft.com\/products\/wolverine-airsoft-mtw-billet-upper-receiver-kit","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}