{"product_id":"asta-aria-sigal-sub-x-shaft-free-per-oleopneumatico","title":"Aria X-Shaft Free Shaft","description":"\u003ch2\u003eX-Shaft Free Shaft for Pneumatic Spearguns\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eX-Shaft Free shaft\u003c\/strong\u003e produced by Sigal Sub is made from high-quality Swedish Sandvik steel, heat-treated to enhance its mechanical properties of hardness, strength, and rigidity. This combination ensures an especially strong and accurate shaft, suitable for both latest-generation pneumatic spearguns and older models.\u003c\/p\u003e\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-treated Sandvik steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e exclusive to oleopneumatic vacuum systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e“Nude” design:\u003c\/strong\u003e without line slide, washer, or tail piece (tang), with a transverse hole for attachment to monofilament or line\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydrodynamic improvement:\u003c\/strong\u003e no protruding elements to improve penetration and increase ballistic efficiency by up to +10% compared to traditional systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFloppers:\u003c\/strong\u003e made from raw AISI 316L stainless steel, recessed type, partially integrated into the shaft profile to reduce hydrodynamic drag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand-modified single flopper:\u003c\/strong\u003e prevents closing after passing through the fish, improving functionality in the water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Variants\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameters:\u003c\/strong\u003e 6.5 mm, 6.75 mm, 7.0 mm, 8.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLengths:\u003c\/strong\u003e from 65 cm to 145 cm, for different shooting requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurations:\u003c\/strong\u003e single flopper and opposing double flopper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications and Benefits\u003c\/h3\u003e\n\u003cp\u003eThanks to the structural rigidity and elastic recovery of Sandvik steel, the shaft maintains a stable, straight trajectory, minimizing vibration and shaft whip during release. The absence of a tail piece and washer, together with the transverse-hole attachment system, significantly reduces hydrodynamic drag, improving the spear’s accuracy and penetration in the water.\u003c\/p\u003e\n\u003cp\u003eThe recessed AISI 316L stainless steel floppers, resistant to marine corrosion, provide solid holding power without compromising smooth tracking when swinging the speargun. This construction is therefore ideal for the specific needs of \u003cstrong\u003espearfishing\u003c\/strong\u003e and \u003cstrong\u003efreediving\u003c\/strong\u003e with vacuum pneumatic spearguns.\u003c\/p\u003e","brand":"Sigal Sub","offers":[{"title":"6.50 mm \/ 65 cm \/ Single Flopper (top)","offer_id":56925807018329,"sku":"STC-A650M\/065","price":25.2,"currency_code":"EUR","in_stock":true},{"title":"6.50 mm \/ 65 cm \/ Double Flopper (opposed)","offer_id":56925807051097,"sku":"STC-A650D\/065","price":27.6,"currency_code":"EUR","in_stock":true},{"title":"6.50 mm \/ 85 cm \/ Single Flopper (top)","offer_id":56925807083865,"sku":"STC-A650M\/085","price":27.3,"currency_code":"EUR","in_stock":true},{"title":"6.50 mm \/ 85 cm \/ Double Flopper (opposed)","offer_id":56925807116633,"sku":"STC-A650D\/085","price":28.8,"currency_code":"EUR","in_stock":true},{"title":"6.50 mm \/ 94 cm \/ Single Flopper 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