{"product_id":"polarstar-hopup","title":"PolarStar Hop Up Thing","description":"\u003cp\u003eBet you can't guess what this Thing is for. It's a hop up — or a paperweight, or maybe a very expensive fidget spinner — but we're pretty sure it's a hop up. Actually, it's a \u003cstrong\u003e6061 T6 Aircraft Aluminum hop up\u003c\/strong\u003e, machined in-house at PolarStar to ±0.002\" tolerances. No cast parts, no off-spec slop, no YouTuber paid to tell you it'll magically double your range.\u003c\/p\u003e\n\n\u003cp\u003eWe designed this with a zero-BS focus on the stuff that actually matters: \u003cstrong\u003econsistency, fitment, and air-seal\u003c\/strong\u003e. If your hop up is snug and your nozzle is centered, your gun shoots straight. It's not rocket science — it's just good engineering.\u003c\/p\u003e\n\n\u003ch4\u003eTDC Slider System\u003c\/h4\u003e\n\u003cp\u003eThe heart of this Thing is our TDC (Top Dead Center) slider system. Unlike old-school sliders that shift if you sneeze on them, our TDC arm applies perfectly vertical pressure for a consistent flight path every shot. The modular design lets you tune fitment for both AEG and HPA builds.\u003c\/p\u003e\n\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Standard V2 M4\/M16 models (AEG and HPA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 100% Machined 6061 T6 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment:\u003c\/strong\u003e TDC Slider System (3×4mm nub compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Batch 01 — Medical Metal Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's in the Box\u003c\/h4\u003e\n\u003cp\u003eThe hop up Thing and everything you need to make it work: 0.305\" gearbox lip (standard for most AEGs), 3×4mm round nub, ARO (Axel Retaining O-Ring) Tool, 5 shimming O-rings, and a molded barrel clip.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis product is excluded from all discounts.\u003c\/strong\u003e\u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Default Title","offer_id":45868784910370,"sku":"10001406","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_Jun_29_2026_02_11_53_PM.png?v=1782848286","url":"https:\/\/www.katechairsoft.com\/products\/polarstar-hopup","provider":"KA Tech Airsoft ","version":"1.0","type":"link"}