Est. 2014 | USA Small Business
Maztech X4-FCS | Automatic Aiming Control for Instant Green Dot Hits | Limited Stock
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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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Maztech X4-FCS: Aiming Assistant for Instant Hits Without Math
- The Maztech X4-FCS turns your regular rifle scope into a smart system that does the math for you. The Maztech Fire Control System helps you hit targets on the first try by automatically reading the distance and weather. Get the genuine Maztech X4 FCS today to upgrade your rifle before our limited stock is gone.
- See Exactly Where to Aim Inside Your Scope: The gun fire control system shows you a glowing green point in your view, so you just place it on the target and shoot. It fits most 30mm and 34mm scopes, overlaying a smart aiming point while keeping your original crosshairs ready to use.
- Stop Guessing Weather with Integrated Sensors: The unit features built-in sensors that automatically measure real-time conditions affecting your bullet to give you perfect data. It instantly tracks temperature, air pressure, and humidity, while also monitoring how your rifle is tilted to ensure accuracy.
- Hit Targets with Assisted Aiming Point: It uses a military-grade calculator to combine weather data with your ammo info for a perfect shot path. If connected to the X4-LRF, the system moves the green dot instantly; without a rangefinder, you can manually input the distance using the control knob, and the digital aiming point will adjust accordingly.
- Waterproof and Extreme Aluminum Build: Made for the hardest missions, this system is waterproof down to 3 feet and uses strong 7075-T6 aluminum. It is rated to work in extreme heat and freezing cold from -40°F to 140°F, so you can trust it anywhere.

Maztech X4-FCS Review
What are some common accessories to add to the Maztech X4-CFS?
Automated Ranging Solutions
- Maztech X4-LRF (Laser Rangefinder): Integrates directly with the X4-FCS to provide instant, precise distance-to-target data, which is automatically fed into the ballistic solver for a complete fire control solution.
- X4-FCS-to-LRF Cable: A dedicated, durable cable that creates a direct wired connection between the X4-FCS and the X4-LRF, ensuring a reliable data transfer for real-time ranging information.
Operator Control Interfaces
- X4 Rail-Mounted Remote: Allows for the remote operation of the X4-FCS from a user-defined position on the weapon's rail system, enhancing ergonomics and system control without breaking a firing grip.
- X4 Low-Profile Remote: Provides a streamlined, minimalist remote interface for controlling the X4-FCS, designed for operators who prioritize a snag-free weapon profile and tactile control.
Secondary Optic Mounting
- X4 Diving Board Mount: Replaces the standard scope rings to create a forward-mounted platform for installing a secondary, non-magnified red-dot sight, enabling rapid transition between long-range and close-quarters targets.

Maztech Fire Control System Features & Specifications
The X4 FCS Maztech is a revolutionary fire control system that replaces a standard scope mount to give you first-shot accuracy at any distance. Its core value is providing an automated, real-time ballistic solution by using a suite of on-board environmental and motion sensors to measure every factor affecting your shot—from temperature and pressure to the rifle's angle. This data is processed by an integrated Applied Ballistics® solver, which generates a precise, compensated aiming point visible directly through your existing LPVO. This makes the X4-FCS essential for operators in high-stakes situations, as it eliminates complex manual calculations and allows for complete focus on the target.
Maztech X4 FCS Key Features
- Real-Time Ballistic Solver: Features an onboard Applied Ballistics® solver that provides real-time ballistic solutions.
- Integrated Sensor Suite: Uses on-board sensors to account for environmental factors like temperature, pressure, and humidity, as well as motion factors like pitch, roll, and heading.
- Augmented Reality Display: Projects a customizable, daylight-readable green reticle and aiming symbology directly through your optic.
- Broad Compatibility: Designed to work with most 30 mm LPVO scopes and mounts to standard STANAG 4694 / Picatinny rails.
- Durable, All-Weather Construction: Built from solid 7075-T6 billet aluminum and designed to meet MIL-STD-810 environmental specs , it is waterproof up to 3 feet for 30 minutes and operates in extreme temperatures.
- Smartphone Connectivity: An optional companion app allows for easy setup and management of up to 30 different ballistic profiles using Bluetooth®.
Maztech X4 FCS Specifications
- Caliber: Any
- Platform Compatibility: STANAG 4694 (Compatible with STANAG 2324 / Picatinny MIL-STD-1913)
- Scope Compatibility: Fits 30 mm and 34mm LPVO scopes
- Material: Billet 7075-T6 aluminum with Type III hard anodized finish
- Reticle Color: Green
- Weight: 22.6 oz (642 g) with batteries
- Dimensions (L x W x H): 8.2×2.3×3.0 in (209×59×77 mm)
- Battery Type: Two (2) rechargeable USB-C 18650 (supplied) or four (4) CR123 (optional)
- Battery Life: 1 year at 10 operating hours per week
- Connectivity: Bluetooth® Low Energy, Near-Field Communication (NFC), and Ultra-Wideband (UWB) ; all can be disabled.
- Ballistics Solver: Applied Ballistics®
- Operating Temperature: −40∘F to 140∘F ( −40∘C to 60∘C)
- Immersion Rating: Waterproof to 3 ft (91 cm) for 30 minutes
- Country of Origin: Designed and manufactured in the USA
What's in the box of the X4 FCS?
- (1) X4 Fire Control System
- (2) Rechargeable 18650 batteries
- (2) USB-C charging cables
- (1) T15 Torx wrench
- (1) Mini flathead screwdriver
- (1) Packet of Loctite® 242
- (1) Bluetooth® USB dongle
- (1) Lens cleaning cloth
- (1) Cloth drawstring bag
- (1) Maztech patch
- (1) Set of Maztech stickers
- (1) Quick Start Guide
- (1) User Manual
Maztech FCS FAQs
What is a fire control system?
Think of a fire control system as a smart computer for your rifle. Usually, you have to guess where to aim based on distance and wind. This system does all that hard math for you instantly, helping you hit your target on the first try.
How does the automatic fire control system work?
This unit has special sensors that feel the temperature, air pressure, and how your rifle is tilted. It uses a powerful calculator to figure out exactly where your bullet will go. Then, it shows you a glowing green dot in your scope so you know exactly where to aim.
Will it work with my current scope?
It is designed to work with most 30mm and 34mm Low-Power Variable Optic (LPVO) scopes. It attaches to standard Picatinny rails, which are very common on rifles. For a list of incompatible LPVO scopes, please click here. And for a fit guide, please click here.
What happens if the batteries die when I'm using it?
If the batteries die, your scope will still work perfectly. The Maztech Fire Control System is the mount holding your scope, so your rifle will stay zeroed and ready to use just like normal.
Do I need a smartphone to use it?
No. While you can connect it to a smartphone app to set things up faster, you can also do everything manually right on the device without a phone.
Is it hard to install on my rifle?
No, it's designed for simple installation. It mounts onto a standard Picatinny rail, and then you attach your scope to it. The user manual gives you step-by-step instructions to align everything correctly.
Is it waterproof and built to last?
Yes. It's made from strong, aircraft-grade 7075-T6 aluminum. It's also waterproof and can be in up to three feet of water for 30 minutes, so you can trust it in tough weather.
Where can I purchase the Maztech X4-FCS?
The Maztech fire control system is for sale and readily available through Atomic Defense, an officially authorized and trusted dealer of Maztech products. When you purchase from them, you are assured of receiving top-tier equipment backed by robust customer support.
- 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
Visit our return portal to begin the self-serve return/exchange process.
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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.