{"product_id":"da-vinci-custom-03-guren-2-gbb-inner-barrel","title":"[da Vinci Custom] 03 Guren \"2\" Gas Blowback Compatible Inner Barrel","description":"\u003cp\u003e *Please note that this is a special order item and will take approximately one month from the time of order until shipping.\u003c\/p\u003e\n\n\u003cp\u003e 03 Guren 2 Inner Barrel (please select the type and length)\u003cbr\u003e Inner diameter 6.03mm\u003cbr\u003e Outer diameter 8.55mm \u003cbr\u003eHV500 coated (hardened, rust-proof, wear-resistant, and slip-resistant)\u003c\/p\u003e\n\n\u003cp\u003e \u003cspan\u003e73.2mm for GBB\/GLOCK26\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e87mm\u003c\/span\u003e for \u003cspan\u003eGBB\/GLOCK19\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e90mm\u003c\/span\u003e for \u003cspan\u003eGBB\/M\u0026amp;P 9\/PX4\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e95mm\u003c\/span\u003e for \u003cspan\u003eGBB\/HI-CAPA4.3\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e99.2mm\u003c\/span\u003e for \u003cspan\u003eGBB\/XDM\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e97mm\u003c\/span\u003e for \u003cspan\u003eGBB\/GLOCK17\/SIG P226\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003eIt has a special shape similar to the 100mm FNX\u003c\/span\u003e for \u003cspan\u003eGBB\/HK45\u003c\/span\u003e .\u003cbr\u003e \u003cspan\u003e102mm\u003c\/span\u003e for \u003cspan\u003eGBB\/GLOCK34\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e107.4mm\u003c\/span\u003e for \u003cspan\u003eGBB\/M\u0026amp;P 9 LONG\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e112.5mm\u003c\/span\u003e for \u003cspan\u003eGBB\/HI-CAPA5.1\u003c\/span\u003e\u003cbr\u003e The 113.4mm inner barrel shape for \u003cspan\u003eGBB\/FNX-45\u003c\/span\u003e \u003cspan\u003eis designed specifically for FNX.\u003c\/span\u003e \u003cspan\u003e\u003cbr\u003eFor GBB\/M9A1 115mm There is an O-ring groove at the tip for fixing the weight.\u003cbr\u003e For GBB\/GLOCK34 LONG 118mm\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003eThe second release in the Guren series, a low-priced inner barrel series featuring a tight 6.03mm inner diameter and HV500 coating that is highly resistant to wear and dirt while maintaining a beautiful surface!\u003c\/strong\u003e\u003cbr\u003e Guren \"2\" aims to produce a professional-use barrel using iron.\u003cbr\u003e The material and coating used is the same \"HV500 Coat\" as the Guren 1.\u003cbr\u003e The muzzle has been upgraded from the \"chamfered\" finish of the Guren 1 to a \"tapered\" finish. The \"tapered\" finish efficiently expels air and converts it into energy that pushes the bullet forward, while creating a straightened airflow and improving accuracy. \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/da-vinci-custom-03-guren-2-gbb-inner-barrel_2.jpg?v=1768895550\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eThe 6.03mm inner diameter is a tight barrel design that makes it easy to increase muzzle velocity.\u003c\/strong\u003e \u0026lt;br\u0026gt;The inner diameter is set to a tight 6.03mm, so you can expect to improve muzzle velocity just by replacing the barrel.\u003cbr\u003e This product is made of iron. Unlike stainless steel, due to tolerances, the tightest design limit is an inner diameter of 6.03 mm. \u003cbr\u003eIf you set it any tighter, it will jam.\u003c\/p\u003e\n\n\u003cp\u003e We have devised a special design for gas blowback barrels to accommodate a wide variety of variations.\u003cbr\u003e A 45-degree chamfer has been added to prevent damage to the hop packing. \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/da-vinci-custom-03-guren-2-gbb-inner-barrel_3.jpg?v=1768895550\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/da-vinci-custom-03-guren-2-gbb-inner-barrel_4.jpg?v=1768895550\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eGuren's inspection standards\u003c\/strong\u003e include three internal diameter inspection points: \"after polishing,\" \"before coating,\" and \"after coating.\"\u003cbr\u003e In particular, we physically check to see if any burrs generated during processing have affected the inner diameter.\u003cbr\u003e The polishing is then checked again by the \"human eye\" of a select few craftsmen in charge of polishing.\u003cbr\u003e We put in time and effort to provide a thorough user experience.\u003cbr\u003e Regarding roughness of the inner and outer diameters due to the material, and patterns that occur during processing (cutter marks, blade marks, etc.) that do not affect use, \u003cbr\u003eAfter going through the above checks, the craftsman has given his permission, so please use it with confidence.\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003ca href=\"https:\/\/rock-et.jp\/pages\/da-vinci-custom-guren-1-2\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/da-vinci-custom-guren-1-2_3.jpg?v=1766538958\" alt='The difference between Guren \"1\" and \"2\"'\u003e\u003c\/a\u003e\u003cbr\u003e \u003ca href=\"https:\/\/rock-et.jp\/pages\/da-vinci-technique\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/DaVinciCustom_technique.png?v=1766635487\" alt=\"Gentle craftsmanship for all\"\u003e\u003c\/a\u003e\u003cbr\u003e \u003ca href=\"https:\/\/rock-et.jp\/pages\/da-vinci-custom-hv500\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/DaVinciCustom__HV500.png?v=1766635488\" alt=\"What is HV500 Coat?\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"da Vinci Custom","offers":[{"title":"73.2mm (GBB\/GLOCK26)","offer_id":47656229110019,"sku":"4580717524434","price":23.0,"currency_code":"USD","in_stock":true},{"title":"87mm (GBB\/GLOCK19)","offer_id":47656229142787,"sku":"4580717521334","price":23.0,"currency_code":"USD","in_stock":true},{"title":"90mm (GBB\/M\u0026amp;P 9\/PX4)","offer_id":47656229175555,"sku":"4580717521327","price":23.0,"currency_code":"USD","in_stock":true},{"title":"95mm (GBB\/HI-CAPA4.3)","offer_id":47656229208323,"sku":"4580717521266","price":23.0,"currency_code":"USD","in_stock":true},{"title":"99.2mm (GBB\/XDM)","offer_id":47656229241091,"sku":"4580717524380","price":23.0,"currency_code":"USD","in_stock":true},{"title":"97mm (GBB\/GLOCK17・SIG P226)","offer_id":47656229306627,"sku":"4580717521280","price":23.0,"currency_code":"USD","in_stock":true},{"title":"100mm (GBB\/HK45)","offer_id":47656229273859,"sku":"4580717524397","price":23.0,"currency_code":"USD","in_stock":true},{"title":"102mm (GBB\/GLOCK34)","offer_id":47656229339395,"sku":"4580717521297","price":23.0,"currency_code":"USD","in_stock":true},{"title":"107.4mm (GBB\/M\u0026amp;P 9 LONG)","offer_id":47656229372163,"sku":"4580717521341","price":27.0,"currency_code":"USD","in_stock":true},{"title":"112.5mm (GBB\/HI-CAPA5.1)","offer_id":47656229404931,"sku":"4580717521273","price":25.0,"currency_code":"USD","in_stock":true},{"title":"113.4mm (GBB\/FNX-45)","offer_id":47656229437699,"sku":"4580717522249","price":25.0,"currency_code":"USD","in_stock":true},{"title":"115mm (GBB\/M9A1)","offer_id":47656229470467,"sku":"4580717522843","price":27.0,"currency_code":"USD","in_stock":true},{"title":"118mm (GBB\/GLOCK34 LONG)","offer_id":47656229503235,"sku":"guren-03-2-118-g34long","price":27.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0405\/1684\/5735\/files\/da-vinci-custom-03-guren-2-gbb-inner-barrel.jpg?v=1768895550","url":"https:\/\/rock-et.jp\/en-us\/products\/da-vinci-custom-03-guren-2-gbb-inner-barrel","provider":"ROCK-et","version":"1.0","type":"link"}