{"product_id":"prometheus-eg-603-inner-barrel-455mm-ra","title":"Prometheus Airsoft EG 6.03 Tight Bore Inner Barrel 455mm","description":"\u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003e\u003cbr\u003ePrometheus EG 6.03 Tight Bore Inner Barrel 455mm\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eThe Prometheus EG 6.03 Tight Bore Inner Barrel 455mm from Bullseye Country Sport is a premium precision upgrade barrel designed to improve consistency, accuracy and overall shot performance in airsoft AEG platforms. Manufactured in Japan by LayLax under the highly respected Prometheus brand, these barrels have built a reputation for excellent machining quality and dependable performance across both skirmish and upgraded builds.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eFeaturing a precision 6.03 mm tight bore design with extremely tight manufacturing tolerances, the barrel is engineered to improve air seal efficiency, stabilise BB flight and tighten shot grouping compared to many standard factory barrels. The carefully polished internal finish helps reduce inconsistencies during firing, leading to more reliable and repeatable performance shot after shot.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003ePrometheus specifically focuses on material quality and precision engineering rather than unnecessary coatings or gimmicks. The selected barrel material offers the strength required for long-term durability while maintaining the precise internal consistency needed for enhanced accuracy performance.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eThe 455 mm length makes this barrel particularly well suited for longer AEG platforms such as full-length M4 rifles, SPR and DMR setups, longer AK variants and other precision-focused rifle builds where improved consistency and effective range are priorities.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eAs with all tight bore barrels, the best results are achieved when paired with quality polished BBs, a properly tuned hop-up system and good air seal components. When combined with a well-set-up build, barrels like this can make a genuinely noticeable improvement to overall shot consistency and accuracy.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eAt Bullseye Country Sport, we reckon Prometheus barrels have earned their reputation as one of the safest “you genuinely can’t go wrong” upgrade choices in airsoft.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eWhy It’s Great\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003ePrecision 6.03 mm tight bore inner barrel\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eDesigned for improved accuracy and consistency\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eExcellent internal finish and machining quality\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eTight manufacturing tolerances\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eImproves BB flight stability and grouping\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eIdeal for upgraded AEG and DMR builds\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eManufactured in Japan by Prometheus \/ LayLax\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eQuick Specs\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eLength: 455 mm\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eInner Diameter: 6.03 mm\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eTolerance: ±0.01 mm\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eType: Tight Bore Inner Barrel\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eCompatibility: Airsoft AEG Platforms\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eConstruction: Precision Steel Barrel\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eMade In: Japan\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eBrand: Prometheus \/ LayLax\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: black;\"\u003eSame Day Dispatch on All Orders Placed Before 3pm Monday – Friday\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px; color: red;\"\u003eFor Airsoft Use Only, cannot be Adapted or Modified for any other purpose\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eBullseye Country Sport\u003c\/font\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eYour No 1 Outdoor Hobby Store\u003c\/font\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eFootwear, Field Sports, Camping Equipment and more\u003c\/font\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp style=\"margin-bottom: 0cm; \"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cfont color=\"#009900\"\u003eAlways on Target\u003c\/font\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e","brand":"Prometheus","offers":[{"title":"Default Title","offer_id":54020374004054,"sku":"580073","price":56.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/0921\/4294\/files\/5ieaopwm2ja.jpg?v=1779966531","url":"https:\/\/bullseyecountrysport.co.uk\/products\/prometheus-eg-603-inner-barrel-455mm-ra","provider":"Bullseye Country Sport","version":"1.0","type":"link"}