Est. 2014 | USA Small Business

SureFire 328LMF-B | WeaponLight for Heckler & Koch
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Ships today or next day on most orders that are "In Stock". Some orders that are custom or large may take extra time to prepare.
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- Shipping times are estimations. Items that are custom, delayed, rejected, or affected by other acts of god will take additional time.
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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%.
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SureFire 328LMF-B: Compact, High-Performance WeaponLight for Tactical Domination
- The SureFire 328LMF-B is a compact, high-performance WeaponLight designed specifically for Heckler & Koch MP5 submachine gun, HK53 rifle, and HK94 carbine platforms.
- 500 lumens of intense illumination make it ideal for low-light tactical situations, ensuring you have the visual advantage.
- The virtually indestructible LED emitter combined with a TIR lens delivers a beam crafted for close- to medium-range applications.
- Equipped with intuitive and ergonomic switching, including a momentary-on pressure pad and constant-on rocker, it provides seamless operation without compromising grip.
- Built with a rugged polymer and aluminum construction, the forend is finished with Mil-Spec hard anodized durability to endure extreme conditions.
- Compact and lightweight, it offers superior functionality while adding only 9.6 oz (including battery) to your weapon.
- Powered by a single 123A lithium battery, it delivers a full one hour of runtime, ensuring reliability in critical moments.
- Bold, reliable, and battle-ready, the SureFire 328LMF-B is your optimal solution for tactical illumination.

What are some common accessories to add to the SureFire 328LMF-B?
- Additional 123A Lithium Batteries: Carry extra batteries to ensure the WeaponLight is always ready for extended use.
- Lens Covers or Filters: Protect the lens or modify the beam with colored filters for specific tactical applications, such as preserving night vision or signaling.
- Rail-Mounted Accessories: Pair the forend with other compatible rail-mounted tools like laser aiming devices or grips for enhanced utility.
- Cleaning Kit: Use a lens cleaning kit to maintain optimal beam clarity and durability over time.
- Custom Carrying Case: Store and transport your firearm and its accessories securely with a durable case designed for tactical use.
- Pressure Pad Attachments: Consider additional or upgraded pressure pad systems to further customize switching behavior or positioning.
SureFire 328LMF-B Features and Specs
The SureFire 328LMF-B is a compact WeaponLight designed specifically for Heckler & Koch MP5, HK53, and HK94 platforms. It delivers 500 lumens of high-output illumination with a runtime of one hour using a single 123A lithium battery. The light features a virtually indestructible LED emitter paired with a TIR lens, optimized for close- to medium-range scenarios. Its ergonomic switching system includes a momentary-on pressure pad and a constant-on rocker, allowing intuitive operation without compromising the user’s firing grip. Built with a robust combination of polymer and Mil-Spec hard-anodized aluminum, it is highly durable, rugged, and reliable for tactical use.
Key Features:
- 500 lumens of high-output brightness
- One hour of runtime on a single 123A lithium battery
- Virtually indestructible LED and TIR lens optimize beam for close- to medium-range
- Intuitive switching with a pressure pad and constant-on rocker for easy operation
- Durable construction with hard-anodized aluminum bezel and polymer body
- Compact and lightweight design at 9.6 oz (with batteries) for enhanced maneuverability
- Rugged build with tempered window and O-ring seals for resistance to harsh conditions
- Peak beam intensity of 7,600 candela, effective up to 175 meters
- Designed and built in the USA
What's in the box of the SureFire 328LMF-B?
- (1) SureFire 328LMF-B Compact LED Forend WeaponLight
- (1) 123A lithium battery
- (1) User manual
- (1) Warranty card
SureFire 328LMF-B FAQs
What firearms is the SureFire 328LMF-B Forend LED Weapon Light compatible with?
The SureFire 328LMF-B is specifically designed for Heckler & Koch MP5 submachine guns, HK53 rifles, and HK94 carbines. It replaces the original forend of these firearms, providing seamless integration.
What type of battery does the SureFire 328LMF-B Forend LED Weapon Light for H&K MP5, HK53, HK94 use?
This WeaponLight operates on a single 123A lithium battery, which is included with purchase.
How long does the light last on a single battery?
The 328LMF-B provides a runtime of approximately one hour on high output using a single 123A lithium battery.
What is the maximum range of the light?
The beam can reach up to 175 meters, making it ideal for close- to medium-range applications.
Is the SureFire 328LMF-B Forend WeaponLight durable?
Yes, the WeaponLight is designed for rugged use. It features a polymer and hard-anodized aluminum construction, a tempered window, and O-ring seals for enhanced durability in tough environments.
How do I operate the light?
The integrated pressure-pad switch on the right side provides momentary-on functionality, while the rocker-type switch on the left allows for constant-on operation. Both switches are ergonomically designed to be intuitive and ensure control without compromising your firing grip.
Can the SureFire 328LMF-B Compact LED Forend WeaponLight for H&K MP5, HK53 & HK94 withstand harsh conditions?
Absolutely. The light is built to meet military specifications with its hard-anodized aluminum bezel, ensuring resistance to impacts and environmental factors.
Where is the Surefire 328LMF-B Compact LED Forend Weapon Light for H&K MP5 HK53 & HK94 manufactured?
All SureFire products, including the 328LMF-B, are proudly designed and built in the USA.