{"product_id":"epes-m249-hop-up-chamber","title":"EPeS M249 hop-up chamber","description":"\u003cp\u003eThe EPES M249 Hop-Up Chamber is a high-end upgrade part designed for M249 \/ MINIMI airsoft guns. Built for maximum performance, precision and reliability, this CNC-machined hop-up chamber gives your support weapon a more consistent and adjustable hop-up system.\u003c\/p\u003e\n\u003cp\u003eThe chamber uses standard AEG hop-up buckings, making it compatible with a wide range of commonly available buckings. Its precisely designed bucking lip seat helps improve air seal and feeding reliability, while the vertically seated pressure bar works especially well with Maple Leaf hop-up buckings.\u003c\/p\u003e\n\u003cp\u003eHop-up adjustment is handled with a 360° regulator wheel, allowing precise and repeatable tuning. The adjustment direction is clearly marked, making setup easier even during maintenance or field preparation.\u003c\/p\u003e\n\u003cp\u003eThe chamber is made from EN AW 7075-T6 aircraft-grade duralumin and finished with a proven H+PTFE surface treatment. This gives the chamber excellent durability, smooth operation and a premium feel. Made in the Czech Republic, this is a serious upgrade for players who want to get the most out of their M249 platform.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for M249 \/ MINIMI airsoft guns\u003c\/li\u003e\n\u003cli\u003eCompatible with A\u0026amp;K, P\u0026amp;J and Classic Army models\u003c\/li\u003e\n\u003cli\u003eDesigned for standard AEG hop-up buckings\u003c\/li\u003e\n\u003cli\u003eWorks especially well with Maple Leaf hop-up buckings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-end CNC-machined hop-up chamber for M249 \/ MINIMI airsoft guns\u003c\/li\u003e\n\u003cli\u003ePrecise 360° hop-up adjustment wheel\u003c\/li\u003e\n\u003cli\u003eClearly marked hop-up adjustment direction\u003c\/li\u003e\n\u003cli\u003eDesigned for AEG hop-up buckings with standard lip length\u003c\/li\u003e\n\u003cli\u003eSpacer sleeves included for buckings with longer lips\u003c\/li\u003e\n\u003cli\u003eVertically seated pressure bar for improved hop-up performance\u003c\/li\u003e\n\u003cli\u003eAdjustable chamber clearance against the gearbox opening with included O-rings\u003c\/li\u003e\n\u003cli\u003eMultiple fixation options to help prevent chamber rotation\u003c\/li\u003e\n\u003cli\u003eReplaceable feed assembly mounting pin\u003c\/li\u003e\n\u003cli\u003eMade from EN AW 7075-T6 aircraft-grade duralumin\u003c\/li\u003e\n\u003cli\u003eH+PTFE surface finish\u003c\/li\u003e\n\u003cli\u003eMade in the Czech Republic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × hop-up chamber\u003c\/li\u003e\n\u003cli\u003e1 × hop-up pressure bar regulation ring\u003c\/li\u003e\n\u003cli\u003e1 × pressure roller\u003c\/li\u003e\n\u003cli\u003e2 × O-rings for securing the regulator ring, 9 × 1.5 mm\u003c\/li\u003e\n\u003cli\u003e2 × O-rings for adjusting chamber clearance against the gearbox opening, 6 × 1 mm and 9 × 1 mm\u003c\/li\u003e\n\u003cli\u003e2 × spacer sleeves for hop-up bucking lip, 0.1 mm and 0.2 mm\u003c\/li\u003e\n\u003cli\u003e4 × grub screws for fixing the inner barrel inside the hop-up chamber, 2 × M3×5 and 2 × M3×4\u003c\/li\u003e\n\u003cli\u003e1 × M3×12 grub screw for fixing the hop-up chamber inside the outer barrel housing\u003c\/li\u003e\n\u003cli\u003e1 × longer replacement pin for mounting the chamber inside the feed assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePlease note\u003c\/h3\u003e\n\u003cp\u003eCorrect installation and alignment are important for reliable feeding, air seal and overall performance. Make sure the chamber is properly seated, the bucking is correctly installed and the BB path is unobstructed before use.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/G5ngaM91FYM?si=hehd4fauWWopvppu\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Epes evolution s.r.o.","offers":[{"title":"Default Title","offer_id":57686205825372,"sku":"E350-M249","price":43.88,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/e350-m249-002.webp?v=1779183698","url":"https:\/\/atom-airsoft.fi\/en-at\/products\/epes-m249-hop-up-chamber","provider":"Atom Airsoft","version":"1.0","type":"link"}