{"product_id":"ops-core-o2-mask-double-strap-kit-fast-sentry-ach","title":"O2 Mask Double Strap Kit | Available for FAST\/Sentry \u0026 ACH Rail Systems","description":"\u003cp\u003eMaintaining a flawless facial seal on your oxygen mask is non-negotiable when operating in high-altitude MFF (HALO\/HAHO) windows or specialized CBRN environments. Standard mask harnesses often conflict with helmet liners, causing hotspots and dangerous air leaks.\u003c\/p\u003e\n\u003cp\u003eThe Ops-Core O2 Mask Double Strap Kit resolves this by routing your mask retention directly onto the helmet's rail system. We offer this legitimate factory kit in two configurations: FAST \u0026amp; Sentry Rails or ACH Rails. This system distributes tension evenly across the face, eliminating helmet rotation and ensuring your life-support equipment stays locked down under heavy slipstreams or high-G movements.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003ePlatform-Specificc Sizing:\n\u003cul\u003e\n\u003cli\u003eFAST \u0026amp; Sentry Variant: Tailored perfectly for standard Ops-Core ARC rail channels.\u003c\/li\u003e\n\u003cli\u003eACH Variant: Engineered to clear the geometry and mounting hardware of legacy ACH\/MICH helmet rail conversions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDual-Strap Stabilisation: The double strap architecture creates dual vectors of rearward tension. This keeps the mask stabilized symmetrically against the face, preventing buffeting from high-velocity aircraft exits.\u003c\/li\u003e\n\u003cli\u003eRapid Snap-Fit Disconnect: Heavy-duty snap buckles allow operators to don or doff their O2 mask instantly upon landing, even while wearing wet-weather or combat gloves.\u003c\/li\u003e\n\u003cli\u003eMil-Spec Environmental Resistance: Built from specialized low-temperature tolerant polymers and low-stretch webbing designed to perform flawlessly in high-altitude, sub-zero environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eMilitary Free Fall (MFF) Operations: Vital hardware for airborne operators requiring a secure oxygen mask interface during HAHO\/HALO inflight and descent phases.\u003c\/li\u003e\n\u003cli\u003eSpecialised Tactical Units: For tactical teams integrating specialized gas or low-profile filtration masks with their existing ballistic headborne systems.\u003c\/li\u003e\n\u003cli\u003eMilsim \u0026amp; Aviation Collecting: Complete an authentic, accurate impression of modern Tier 1 operators configured for airborne deployment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTechnical Highlights\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eHelmet Compatibility: Ops-Core FAST, Sentry, or ACH\/MICH configurations (Select version at checkout).\u003c\/li\u003e\n\u003cli\u003eMask Compatibility: Fits standard military oxygen mask snap profiles (e.g., Gentex PHAEDRA, MBU-20\/P).\u003c\/li\u003e\n\u003cli\u003eKit Includes: Left and right O2 strap assemblies, quick-release buckles, and rail mounting shoes.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ops-Core","offers":[{"title":"Black","offer_id":41326491959486,"sku":"OC018150307","price":900.0,"currency_code":"HKD","in_stock":false},{"title":"Tan","offer_id":40934175178942,"sku":"OC018150351","price":900.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/products\/original_548b4f8e-b504-4c24-a1b3-2357d0a72020.jpg?v=1751538872","url":"https:\/\/pts-steelshop.com\/products\/ops-core-o2-mask-double-strap-kit-fast-sentry-ach","provider":"PTS Steel Shop","version":"1.0","type":"link"}