{"title":"MechLabs","description":"\u003cp\u003eMechLabs build fully mechanical HPA engines — no fire control unit, no battery, no wiring. The XX-Mod and NEXXUS run semi and full auto from air alone, which makes them genuinely waterproof and leaves nothing electrical to fail in the wet.\u003c\/p\u003e\u003cp\u003eWe are an authorised MechLabs tech centre, so fitting, tuning and servicing all happen in our workshop rather than being sent away.\u003c\/p\u003e","products":[{"product_id":"mechlabs-xx-mod-fully-mechanical-hpa-engine-for-v2-gearbox","title":"MechLabs XX-Mod Fully Mechanical HPA Engine for V2 Gearbox","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;\"\u003eMechLabs XX-Mod — semi and full auto with no electronics in it whatsoever.\u003c\/strong\u003e Which is why it is genuinely waterproof, and the simplest HPA engine we sell to fit.\u003c\/div\u003e\u003cp\u003eEvery other HPA engine we sell has a fire control unit, a battery and a loom of wires. They are excellent, and they are also the parts most likely to stop you playing — a flat micro-pack, a chafed wire, water where it should not be. The XX-Mod deletes all three by being \u003cstrong\u003eentirely mechanical\u003c\/strong\u003e: the trigger drives the engine directly, and there is nothing electrical inside it at all.\u003c\/p\u003e\u003cp\u003eThe part that surprises people is that this costs you nothing in capability. Mechanical engines were semi-only for years, because holding a solenoid open reliably was the electronics’ job. The XX-Mod gives you \u003cstrong\u003esemi and full auto with no FCU\u003c\/strong\u003e, which is the whole reason the platform exists.\u003c\/p\u003e\u003cp\u003eThe other consequence is one no electronic engine can match. With \u003cstrong\u003ezero electronics, the XX-Mod is completely waterproof\u003c\/strong\u003e — MechLabs state it runs in wet weather and continues to function fully submerged. For anyone who plays a British winter, that is not marketing.\u003c\/p\u003e\u003cp\u003eIt is a \u003cstrong\u003egenuine drop-in replacement for a standard V2 AEG gearbox\u003c\/strong\u003e, machined from CNC-milled Series 6 aluminium as \u003cstrong\u003emodular blocks\u003c\/strong\u003e that lock together on a precision interface, so sections can be swapped for different setups. A \u003cstrong\u003e3-axis XYZ alignment system\u003c\/strong\u003e lets you micro-adjust the fit to your particular receiver — which is what makes a mechanical engine behave consistently across guns that are never quite identical.\u003c\/p\u003e\u003cp\u003eMechanical does not mean fixed, either. The \u003cstrong\u003eAir Bender\u003c\/strong\u003e tunes the internal air-cycle rate, giving direct control over rate of fire and air consumption per shot. The \u003cstrong\u003emagnetic return trigger\u003c\/strong\u003e adjusts for travel and sensitivity. And the XX-Mod Bolt’s adjustable nozzle lets you dial the fit into your hop chamber rather than accepting whatever length it came with.\u003c\/p\u003e\u003cp\u003eMechLabs advise small incremental adjustments rather than jumping to extremes — the tuning range is wide enough that an aggressive setting can cause irregular cycling.\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\u003ctbody\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;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eFully mechanical HPA engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eFire modes\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e\u003cstrong\u003eSemi and full automatic\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eGearbox\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eV2 — drop-in replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eInstallation\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eDrop-in — no shimming, cutting, drilling or wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eElectronics\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e\n\u003cstrong\u003eNone\u003c\/strong\u003e — no FCU, no battery, no wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eWater resistance\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eFully waterproof; operates submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eCNC-milled Series 6 aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eDesign\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eModular blocks, precision lock-fit interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\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;\"\u003e3-axis XYZ micro-adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eTrigger\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMagnetic return, adjustable travel and sensitivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eROF tuning\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAir Bender adjustable air-cycle rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBolt\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eXX-Mod Bolt with adjustable nozzle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAlso compatible with\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eFLO MAX TS dual-air configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eColours\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eNine anodised finishes, all the same price\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMechLabs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\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\u003eThis is the most straightforward HPA engine we sell to fit.\u003c\/strong\u003e It drops into a standard V2 gearbox shell as a complete unit — no shimming, no nozzle length to calculate, no cutting or drilling, and no wiring at all, because there is nothing electrical to route. The 3-axis XYZ alignment exists precisely so it seats correctly in receivers that are never quite identical, which is the step that makes most conversions fiddly.\u003cbr\u003e\u003cbr\u003eYou will need a tank, regulator and line — but \u003cstrong\u003eno battery, no charger and no fire control unit\u003c\/strong\u003e. That is three fewer things to buy and nothing to find space for inside the gun.\u003cbr\u003e\u003cbr\u003eSustained full auto asks a lot of a regulator. If full auto is why you want it, talk to us about air flow before you order — a low-flow regulator can struggle to keep an engine fed under load.\u003cbr\u003e\u003cbr\u003eTune in small steps: MechLabs specifically warn that extreme Air Bender settings can cause irregular cycling.\u003c\/p\u003e\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow hard is it to fit?\u003c\/strong\u003e\u003cbr\u003eEasier than any other HPA engine we stock. It is a true drop-in: open the gearbox shell, remove the AEG internals, seat the XX-Mod and connect your air line. No shimming, no nozzle matching, no cutting, no drilling and no wiring. If you have ever opened a gearbox you can fit one, and we will do it for you if you would rather not.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it really do full auto?\u003c\/strong\u003e\u003cbr\u003eYes, semi and full auto, with no fire control unit anywhere in it. That is unusual for a mechanical engine and it is the main reason to look at this platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it actually waterproof?\u003c\/strong\u003e\u003cbr\u003eYes, and it follows directly from having no electronics. MechLabs state it operates in wet weather and continues to function fully submerged. No electronic HPA engine can claim that.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIf it is mechanical, can I still tune it?\u003c\/strong\u003e\u003cbr\u003eA great deal. The Air Bender sets air-cycle rate and therefore rate of fire and air consumption, the magnetic trigger adjusts travel and sensitivity, and the bolt nozzle adjusts to suit your hop chamber.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it compare to a Wolverine INFERNO or GATE PULSAR?\u003c\/strong\u003e\u003cbr\u003eThose give you programmable fire modes, binary triggers and app tuning, and need a battery and an FCU to do it — which also makes them more involved to install. The XX-Mod trades all of that for mechanical simplicity, waterproofing, a genuinely easy fit and nothing electrical to fail, while still giving you semi and full auto.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it fit my gun?\u003c\/strong\u003e\u003cbr\u003eIt drops into a standard V2 AEG gearbox, and the 3-axis alignment exists specifically to absorb variation between receivers. Send us your make and model and we will confirm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the colours cost different amounts?\u003c\/strong\u003e\u003cbr\u003eNo. All anodised finishes are the same price.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan you fit and tune it for me?\u003c\/strong\u003e\u003cbr\u003eYes. We are an authorised MechLabs tech centre, so installation, tuning and any later servicing happen here rather than being sent away.\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⚠ \u003cstrong\u003eRunning HPA:\u003c\/strong\u003e always feed an engine through a secondary regulator and never connect it directly to a tank output. Check the rated pressure before setting a regulator, and chronograph to your site limit before playing.\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 pair it with the \u003ca href=\"\/products\/mechlabs-flo-max-regulator-with-on-off\" style=\"color: #cdd6f4;\"\u003eFLO MAX regulator\u003c\/a\u003e for full-auto air flow, add the \u003ca href=\"\/products\/mechlabs-flat-trigger-xx-mod\" style=\"color: #cdd6f4;\"\u003eXX-Mod flat trigger\u003c\/a\u003e, or see all our \u003ca href=\"\/collections\/hpa-engines\" style=\"color: #cdd6f4;\"\u003eHPA engines\u003c\/a\u003e. As an authorised MechLabs tech centre we fit, tune and service these in house rather than sending them away, or \u003ca href=\"https:\/\/wa.me\/447874452357\" style=\"color: #cdd6f4;\"\u003emessage us on WhatsApp\u003c\/a\u003e.\u003c\/div\u003e","brand":"MechLabs","offers":[{"title":"Black","offer_id":55566027882872,"sku":"ML-XME-BLK","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Blue","offer_id":55566027915640,"sku":"ML-XME-BLU","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Gold","offer_id":55566027948408,"sku":"ML-XME-GLD","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Grey","offer_id":55566027981176,"sku":"ML-XME-GRY","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Green","offer_id":55566028013944,"sku":"ML-XME-GRN","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Pink","offer_id":55566028046712,"sku":"ML-XME-PNK","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Purple","offer_id":55566028079480,"sku":"ML-XME-PUR","price":389.95,"currency_code":"GBP","in_stock":false},{"title":"Red","offer_id":55566028112248,"sku":"ML-XME-RED","price":389.95,"currency_code":"GBP","in_stock":true},{"title":"Teal","offer_id":55566028145016,"sku":"ML-XME-TEA","price":389.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/MechLabsXX-ModFullyMechanicalHPAEngine-TitanForgeAirsoft-Parent_74647729-7a29-43d8-b0e5-e5a9031fceb1.png?v=1779263931"},{"product_id":"mechlabs-xx-mod-bolt","title":"MechLabs XX-Mod Bolt — Adjustable Nozzle for XX-Mod, NEXXUS and ARC","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;\"\u003eMechLabs XX-Mod Bolt — more shots per tank, and a nozzle you set to your own hop chamber.\u003c\/strong\u003e Engineered for the XX-Mod, and cross-compatible with NEXXUS and ARC.\u003c\/div\u003e\u003cp\u003eThe bolt is where an HPA engine spends its air, so it is also where the gains hide. The XX-Mod Bolt reduces air consumption per shot, which means \u003cstrong\u003emore shots per tank\u003c\/strong\u003e without changing how the gun performs.\u003c\/p\u003e\u003cp\u003eThat lower demand pays off twice. Because it needs less volume during rapid fire, it stays stable on \u003cstrong\u003elower-flow third-party regulators and tank presets\u003c\/strong\u003e that would otherwise fall behind. If your regulator is not a high-flow unit, this is the part that makes the difference.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eadjustable nozzle\u003c\/strong\u003e is the headline. Rather than living with a fixed length, you set the nozzle to sit precisely in your hop-up chamber — which improves grouping and output stability, and synchronises the internal air-cycle rate to deliver the right air volume for your nozzle length and configuration.\u003c\/p\u003e\u003cp\u003eIt also minimises the shot-down effect, so the transition from semi into full auto is smoother with less drop across a burst. And although MechLabs engineered it for the XX-Mod, it is fully cross-tech compatible with the \u003cstrong\u003eNEXXUS and ARC\u003c\/strong\u003e platforms, so owners of those engines get the same air performance.\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;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eHPA engine bolt with adjustable nozzle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eEngineered for\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMechLabs XX-Mod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eCross-compatible\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eNEXXUS and ARC platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eNozzle\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAdjustable to fit the hop-up chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eAir consumption\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eReduced — more shots per tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eBurst management\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eLower air-volume demand during rapid fire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eRegulators\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eStable on lower-flow third-party regulators and tank presets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eShot-down effect\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMinimised for smoother semi to auto transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px;border:1px solid #eee;\"\u003eMechLabs\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\u003eA component rather than a complete engine, and it is already fitted to a new XX-Mod — so this listing is for upgrading a NEXXUS or ARC, or replacing a worn bolt.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting is a straightforward swap\u003c\/strong\u003e — the bolt comes out and the XX-Mod Bolt goes in, with no shimming or modification. The only step that needs care is setting the nozzle to your chamber rather than leaving it at default, because that adjustment is where the grouping and stability gains come from.\u003c\/p\u003e\u003ch2 style=\"font-size:16px;color:#1B3A6B;margin:18px 0 8px;\"\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill it fit my NEXXUS or ARC?\u003c\/strong\u003e\u003cbr\u003eYes. MechLabs engineered it for the XX-Mod but built it cross-tech compatible with both NEXXUS and ARC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it difficult to fit?\u003c\/strong\u003e\u003cbr\u003eNo. It is a direct swap for the existing bolt with no modification needed. Setting the nozzle length to suit your hop chamber is the part worth taking time over, and we will do it on the bench if you prefer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need it if I have just bought an XX-Mod?\u003c\/strong\u003e\u003cbr\u003eNo, the engine ships with it. This is for NEXXUS and ARC owners wanting the same air performance, or to replace a worn one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much air will it actually save?\u003c\/strong\u003e\u003cbr\u003eMechLabs do not publish a percentage. What they do state is that lower volume demand keeps it stable on lower-flow regulators, which is the benefit most people notice in practice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does adjusting the nozzle achieve?\u003c\/strong\u003e\u003cbr\u003eIt sets the fit into your hop-up chamber precisely, improving grouping and output stability, and syncs the air-cycle rate to your nozzle length.\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⚠ \u003cstrong\u003eRunning HPA:\u003c\/strong\u003e always feed an engine through a secondary regulator and never connect it directly to a tank output. Check the rated pressure before setting a regulator, and chronograph to your site limit before playing.\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 see the \u003ca href=\"\/products\/mechlabs-xx-mod-fully-mechanical-hpa-engine-for-v2-gearbox\" style=\"color:#cdd6f4;\"\u003eXX-Mod engine\u003c\/a\u003e it was built for, or the full \u003ca href=\"\/collections\/hpa-engines\" style=\"color:#cdd6f4;\"\u003eHPA engine range\u003c\/a\u003e. As an authorised MechLabs tech centre we fit, tune and service these in house rather than sending them away, or \u003ca href=\"https:\/\/wa.me\/447874452357\" style=\"color:#cdd6f4;\"\u003emessage us on WhatsApp\u003c\/a\u003e.\u003c\/div\u003e","brand":"MechLabs","offers":[{"title":"Default Title","offer_id":55643212644728,"sku":"7665860684","price":84.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/MechLabsXX-MoldBoltAdjustableNozzle_TitanForgeAirsoft.webp?v=1788284904"}],"url":"https:\/\/www.titanforgeairsoft.com\/collections\/mechlabs.oembed","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}