{"product_id":"atom-custom-4s-m4-hop-up-yksikko","title":"Atom Airsoft 4S M4 hop-up unit","description":"\u003cp\u003eThe Atom Custom 4S hop-up unit ensures excellent hop-up performance even in Nordic weather conditions! The Atom Custom 4S hop-up unit is made from durable, rigid polymer. This polymer material choice helps prevent the hop-up rubber from freezing in cold environments and naturally performs exceptionally well in rainy autumn weather and summer conditions.\u003c\/p\u003e\n\u003cp\u003eThe hop-up adjustment on the Atom Custom 4S is done via a large adjustment wheel aligned with the barrel. The adjustment wheel maintains its setting precisely thanks to a dedicated locking ring. This securely adjustable hop-up unit provides maximum accuracy and performance. For the best results, use the 4S M4 hop-up unit together with \u003ca href=\"https:\/\/www.atom-airsoft.fi\/?s=Atom+Custom+ZERO\u0026amp;post_type=product\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAtom Custom ZERO precision barrels\u003c\/a\u003e.\u003c\/p\u003e","brand":"Atom Airsoft","offers":[{"title":"Default Title","offer_id":54236811297116,"sku":"AC4SM4","price":29.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/4S-HOP-UP-ROTARY-CHAMBER.jpg?v=1743368590","url":"https:\/\/atom-airsoft.fi\/en-sk\/products\/atom-custom-4s-m4-hop-up-yksikko","provider":"Atom Airsoft","version":"1.0","type":"link"}