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Ops-Core FAST SF Gen 2 Helmet | 15% Lighter w/ NIJ IIIA Protection & New FLEX Retention
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Return & Exchange policy:
- Summary: Don't take those sweet Instagram pics and then try to return a used item. Must be within 30 days of delivery.
- Exchanges: Realized you need a different item? That's ok! Exchanges and returns are incredibly easy.
- We are a Small Business: We do the most we can to help with return costs, but we are not Amazon and cannot take hits or losses like Amazon.
- Wrong Items: Mistakes rarely happen. Atomic Defense takes pictures of orders before they are packaged and shipped. We pay for return, recertification, and exchange shipping costs if we ever make a mistake on your orders.
- Rules for Returns: We will deduct refurbishing costs, plus materials and labor, of used products or modified products - or decline the return. This includes, but is not limited to; products with residue, smells, scratches, missing parts, debris, dents and damage. **We reserve the right to refuse returns. Refused returns shipping cost back to the buyer are not covered by Atomic Defense.
- Packaging: Ensure returns are packaged safely with thick padding on all six sides. Failure to correctly package returns may damage products and cost will be deducted from Buyer's account or return refused.
- Bulletproof products: No one else accepts returns on ballistic items. We do.** However, recertification X-Ray costs on returned ballistic items is 20%.
- Starting a return/exchange: Click here
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Ops-Core FAST SF Gen 2 Helmet | Next-Gen Lightweight Protection & Unmatched Comfort
- The Ops-Core FAST SF Next Generation Headborne System is Ops-Core's lightest advanced ballistic helmet, engineered to provide elite operators with superior protection, significantly reduced weight, and exceptional comfort for peak performance in diverse and demanding field operations.
- Superior Lightweight Ballistic Protection: This system delivers uncompromised NIJ Level IIIA ballistic integrity while achieving a critical 10-15% overall system weight reduction compared to its legacy counterparts. This is primarily due to the next-generation FAST SF ballistic shell (Size L shell: 1.23 lbs/557g), which is thinner and lighter for markedly enhanced wearability without sacrificing protection.
- Unparalleled Comfort & Operational Stability: The revolutionary Universal LockDown™ Liner System provides a secure, highly customizable, and exceptionally comfortable fit for any head shape. Its strategic, moisture-wicking, anti-microbial padding maximizes airflow and ensures stability even with heavy ancillary equipment like NVGs and communication headsets, eliminating pressure points. The Cable Occ-Dial® and conformal nape pad are key to this stability.
- Enhanced Versatility & Seamless Integration: The redesigned Head-Loc® FLEX Chinstrap, with its convertible and fully adjustable chin cup (wearable over or under the chin), offers operators unprecedented flexibility and improved usability, often negating the need for mask extenders. The system features PowerPath™ ARC Rails with integrated snag-free NVG cable routing and a Lightweight Modular Bungee Shroud (MBS), ensuring flawless integration of essential mission accessories.
Ops-Core FAST SF Gen 2 Helmet Review
What are some common accessories to add to the Ops-Core FAST SF Gen 2 Helmet?
- Ops-Core AMP Communication Headset: Integrates flawlessly with the FAST SF Helmet, delivering advanced 3D hear-through technology and mission-adaptable hearing protection for superior auditory awareness and crystal-clear team communications.
- Ops-Core AMP Helmet Rail Mount Kit: Affixes the AMP Headset directly to the FAST SF’s PowerPath™ ARC Rails, enabling a streamlined, low-profile setup that enhances comfort and stability by removing the need for a traditional headband.
- Ops-Core SOTR (Special Operations Tactical Respirator): Provides crucial, low-profile respiratory protection against airborne particulates, designed to fit seamlessly with the FAST SF helmet system, ensuring operator safety in contaminated zones without hindering operational effectiveness.
- Ops-Core Step-In Visor: Offers robust eye protection with quick and secure attachment to the FAST SF helmet, featuring a variety of lens options to suit diverse tactical lighting conditions and mitigate ballistic fragmentation threats.
- Ops-Core Railink NVG/VAS Cable - Kestrel: Establishes a dedicated and secure power and data conduit from the Railink system directly to Kestrel NVG devices, promoting reliable performance and organized cable management on your FAST SF helmet.
- Ops-Core Railink Battery Pack: Securely mounts to the rear of the FAST SF helmet, acting as a centralized power hub for night vision systems and other electronic accessories, thereby improving the helmet's balance and extending mission endurance.
- Ops-Core Railink Ballistic Hardware Kit: Facilitates the secure attachment of Railink system components to the FAST SF ballistic shell, preserving the helmet’s protective capabilities while significantly expanding its electronic integration potential.
- Ops-Core Railink Power and Data ARC Rails: Upgrades the standard FAST SF ARC rails to incorporate integrated power and data transfer, allowing direct powering of mounted accessories and minimizing external cable exposure for a cleaner, more efficient setup.
- Princeton Tec Switch MPLS (Modular Personal Lighting System): A compact, multi-functional task light designed for helmet mounting, easily attaching to the FAST SF ARC rails to provide versatile dual-LED (e.g., white/IR) illumination with a minimal operational signature.
- SureFire HL2-A Light: A rugged, high-output helmet-mounted illumination solution, offering adaptable white and/or IR light capabilities. It integrates securely onto the FAST SF ARC rails, significantly enhancing visibility across diverse operational environments.
- Ops-Core Counterweight: Attaches to the rear of the FAST SF helmet to improve balance and comfort when using front-mounted accessories like NVGs, reducing neck strain and enhancing stability during prolonged use.

Ops-Core FAST SF Gen 2 Helmet Features & Specs
The Ops-Core FAST SF Helmet System is engineered as an advanced headborne protective solution, prioritizing significantly reduced weight without compromising ballistic integrity. It achieves this through a next-generation SF ballistic shell that is thinner and lighter, a universal LockDown™ Liner System for enhanced comfort, stability, and airflow, and a redesigned Head-Loc® FLEX Chinstrap for improved versatility and user comfort. This system offers NIJ Level IIIA ballistic protection (against 9mm FMJ @ 1,400 ft/s) and features like PowerPath™ ARC Rails for seamless accessory integration, including snag-free NVG cable routing. The overall system weight for a size Large is approximately 2.09 lbs (949g). It is available in sizes Medium through XX-Large and in colors including Tan 499, Black, Ranger Green, and MultiCam.
Ops-Core FAST SF Gen 2 Helmet Key Features:
- Lightest Ops-Core Ballistic System: Achieves a 10-15% system weight reduction compared to the legacy FAST SF, enhancing operator endurance and reducing fatigue.
- Uncompromised Ballistic Protection: Delivers NIJ 0106.01 with NIJ 0108.01 Level IIIA threat protection, maintaining robust defense capabilities despite its lighter design.
- Universal LockDown™ Liner System: A one-size-fits-all liner providing superior comfort, maximized airflow, and exceptional stability, especially with heavy NVG setups, featuring customizable pads and a Cable Occ-Dial®.
- Redesigned Head-Loc® FLEX Chinstrap: Offers enhanced modularity with a convertible chin cup (wearable over or under the chin) and optimized buckles for improved usability and comfort.
- Advanced Accessory Integration: Equipped with PowerPath™ ARC Rails for secure mounting of accessories and discreet NVG cable management, complemented by a Lightweight Modular Bungee Shroud (MBS) for reduced snagging and enhanced NVG stability.
- Trusted by Elite Forces: Serves as the exclusive provider for USSOCOM's FTHS helmet system, underscoring its reliability and performance in the most demanding operational environments.
- Optimized Shell Design: Features a high-cut, two-stage non-slit ballistic shell with a thickness of 0.170" (4.32mm) for balanced protection and situational awareness.
What's in the box of the Ops-Core FAST SF Helmet System?
- (1) The fully assembled FAST SF Helmet with the LockDown™ Liner and Head-Loc® Flex Chinstrap.
- (1) NVG Mount Arm Bumper Kit (for NVG mount stability).
- (1) LockDown Fit Shim Kit (for liner customization).
- (1) ARC Cable Management Clip.
- (10) Cable Ties.
- (6) Split Rings.
- (1) Picatinny Adapter.
- (1) Operator's Manual.
Ops-Core FAST SF Helmet System FAQs
Why should I choose the Ops-Core FAST SF Next Generation Helmet System for demanding operations?
The FAST SF Next Generation is engineered for operators who require the absolute best. It represents the pinnacle of lightweight ballistic helmet design, offering a significant 10-15% weight reduction over its predecessor without compromising on NIJ Level IIIA ballistic protection. This means reduced fatigue and enhanced operational endurance. Coupled with its advanced comfort features and the trust placed in it by elite forces like USSOCOM (as their FTHS helmet provider), it's an investment in your performance and safety.
What are the key advantages of the "Next Generation" FAST SF compared to previous FAST helmets?
- Lighter Ballistic Shell: Noticeably lighter for improved wearability during extended use.
- Universal LockDown™ Liner System: This is a major upgrade in comfort and stability. It offers a one-size-fits-all, customizable fit with superior airflow and pressure-point elimination, crucial when wearing communications gear or operating for long durations.
- Versatile Head-Loc® FLEX Chinstrap: Redesigned for better modularity and comfort, featuring a convertible chin cup that can be worn over or under the chin, often eliminating the need for mask extenders.
How does the FAST SF achieve its lightweight design without sacrificing protection?
Ops-Core utilizes advanced materials and cutting-edge manufacturing processes for the next-generation FAST SF ballistic shell. This allows for a thinner and lighter shell profile that still meets rigorous NIJ Level IIIA ballistic standards, specifically tested against 9mm FMJ rounds at 1,400 ft/s. The focus is on optimizing the strength-to-weight ratio.

For extended missions, how does the FAST SF Next Gen ensure operator comfort and minimize fatigue?
Beyond its significant weight reduction (a Size L system is approx. 2.09 lbs / 949g), the FAST SF excels in comfort due to:
- The LockDown™ Liner System with strategically placed, moisture-wicking, anti-microbial pads that maximize airflow and can be adjusted with included fit shims.
- The Cable Occ-Dial® and conformal nape pad ensure a snug, stable fit that doesn't shift, reducing points of friction.
- The highly adjustable Head-Loc® FLEX Chinstrap further personalizes the fit.
Getting the right helmet fit is critical. How does Ops-Core address this with the FAST SF Gen 2 Helmet?
Ops-Core provides a detailed Sizing Guide based on precise head circumference measurements (ensure the tape is pulled tight). The LockDown™ Liner System is a universal, one-size-fits-all internal system, but it comes with a LockDown Fit Shim Kit allowing you to customize pad thickness for a perfect, secure fit. The chinstrap is also highly adjustable. If your head and chinstrap measurements suggest different sizes, it's recommended to choose the larger of the two.

What specific threats is the FAST SF rated to protect against?
The FAST SF Next Generation helmet is rated for NIJ 0106.01 with NIJ 0108.01 Level IIIA ballistic protection. This includes protection against 9mm FMJ rounds at 1,400 ft/s and has been tested with 9mm FMJ rounds at 1200 f/s with specific backface deformation parameters.
What items are included in the box when I purchase the Ops-Core FAST SF Next Gen Helmet System?
Your Ops-Core FAST SF Helmet System will include:
- (1) Ops-Core FAST SF Helmet System, fully assembled with the LockDown™ Liner System and Head-Loc® Flex Chinstrap.
- (1) NVG Mount Arm Bumper Kit, to reduce vibration and improve stability for your night vision goggle mount.
- (1) LockDown Fit Shim Kit, allowing for precise adjustment of the liner system for a personalized and secure fit.
- (1) ARC Cable Management Clip, to assist in neatly routing cables along the Accessory Rail Connectors.
- (10) Cable Ties, for additional securement of cables and accessories.
- (6) Split Rings, often utilized for attaching stabilizing bungees to various NVG models.
- (1) Picatinny Adapter, enabling the attachment of Picatinny rail-compatible accessories to the ARC rails.
- (1) Operator's Manual, providing detailed instructions on setup, maintenance, and use of your helmet system.
How versatile is the FAST SF for attaching different mission-specific accessories?
- PowerPath™ ARC Rails: Allow for quick attachment of lights, cameras, communication headsets (like the Ops-Core AMP), visors, and O2 masks. They feature a unique behind-the-rail channel for snag-free NVG cable routing.
- Lightweight Modular Bungee Shroud (MBS): Standard 3-hole pattern, reduces snag hazards, and helps stabilize NVGs.
- External VELCRO® Brand loop kit: For easy attachment of strobes, battery packs, counterweights, and other accessories
Where can someone purchase the Ops-Core FAST SF Next Gen Helmet?
You can acquire the Ops-Core FAST SF Next Generation Headborne System directly from Atomic Defense, as we are an authorized distributor of Ops-Core and Gentex Corporation products.
What's the right way to refer to the Ops-Core FAST SF Next Generation Headborne System?
For accuracy, use these official or widely accepted terms:
- Ops-Core FAST SF Next Generation Headborne System (Most complete)
- Ops-Core FAST SF Helmet System
- Ops-Core FAST SF Gen 2 Helmet (Highlights it's the second generation)
- FAST SF Gen 2 Helmet (Common abbreviation)
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FAST SF 2.0 Helmet
- FAST SF 2 Helmet
- Ops-Core FAST SF 2.0 Helmet
- FAST SF Next Gen Helmet
Quick Term Explanations:
- FAST: Future Assault Shell Technology – a family of Ops-Core helmets known for their specific cut and modularity.
- SF: Super High Cut – refers to the helmet's higher side trim for better gear integration and weight optimization.
- Gen 2: Generation 2 – indicating it's an updated version of the FAST SF model.
- Headborne System: Denotes it's a platform designed for integrating various mission components, not just a standalone helmet.
- We are a Small Business: We do the most we can to help with return costs, but we are not Amazon and cannot take hits or losses like Amazon.
- Lifetime Warranty: Atomic Defense will always stand behind our products. Our lifetime warranty covers any defects and ensures that you never need to worry about parts or the quality of your orders for the entire life of the product.
- Wrong Items: Atomic Defense takes pictures of orders before they are packaged and shipped. We pay for return, recertification and exchange shipping costs if we ever make a mistake on your orders.
- Rules for Returns: We may deduct refurbishing costs, plus materials and labor, of used products or modified products. This includes, but is not limited to; products with residue, smells, scratches, missing parts, debris, dents and damage. **We reserve the right to refuse returns.
- Packaging: Ensure returns are packaged safely with thick padding on all six sides. Failure to correctly package returns may damage products and will be deducted from Buyer's account.
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Start a Return or Exchange
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General Products:
- Must be within 30 days of package delivery.
- No need to purchase a shipping label! Atomic Defense will give you a pre-paid one.
Ballistic and Bulletproof Products:
- Most companies will not accept any returns on ballistic or bulletproof items. We offer recertification as a courtesy.
- Must be within 30 days of package delivery.
- No need to purchase a shipping label! Atomic Defense will give you a pre-paid one.
- A re-certification cost of 20% applies to returns of ballistic and bulletproof products.
- The 20% recertification covers the cost of ensuring the armor is safe. Usually starting with X-Raying the armor for cracks underneath the coating, inspection for damage, and water damage testing. Without this 20%, we would not be able to offer returns on armor.
- There is no way for us to know how or if it was used once shipped, and we have to consider them unsafe until retested, inspected and certified.
- Exchanges and non-ballistic products do not have a re-certification cost.