X4-FCS

Price

$3,495.00

The revolutionary fire control system for your preferred LPVO.

Integrated auto-calculated ballistics mount for any caliber.

The X4-FCS™ mount provides real time ballistic calculations using temperature, pressure, humidity, pitch, roll, and heading.

Combining these parameters with user supplied bullet and firearm data, the X4-FCS generates a precision ballistic compensated offset reticle.

LPVO Size

Notification to customers that bought an X4-LRF or X4 Low-Profile Remote before Nov 17, 2025: Click here for low-temperature recall notice of your X4 Low-Profile Remote

CALIFORNIA WARNING: Can expose you to formaldehyde, a carcinogen, and bisphenol S (BPS), a reproductive toxicant. See www.P65Warnings.ca.gov.

Also available at Maztech Preferred Distributors:

Large format display readable in full sunlight with polarized glasses

Designed to meet MIL-STD-810 environmental specs

Accurate ranging for commercial and military applications

Manufactured from solid billet aircraft-grade 7075-T6 aluminum

Designed and manufactured in the USA

X4-LRF-2K Data Sheet

X4-LRF-15K Data Sheet

X4-LRF-15M Data Sheet

Rangefinding Laser:

2K Variant - 905 nm

15K & 15M Variants - 1534 nm

Co-Aligned Auxiliary Lasers:

Visible Aim Laser (Red 660 nm)

IR Aim Laser (842 nm)

Rail Mount:

STANAG 4694 (Compatible with STANAG 2324 / Picatinny MIL-STD-1913)

Integrated Ballistics Solver:

Applied Ballistics® Solver with On-Board Motion and Environmental Sensors

Weight:

2K Variant - 12.3 oz (348 g) with battery

15K & 15M Variants - 12.9 oz (367 g) with battery

Dimensions (L,W,H):

5.2 in. x 2.8 in x 1.8 in (133 mm x 72 mm x 47 mm)

Battery Type:

Supplied - CR123A (Rechargeable USB-C)

Wireless Connectivity:

Bluetooth® Low Energy and Ultra-Wideband (UWB).

Each can be disabled.

Temperature Rating:

-40°F to 140°F (-40°C to 60°C) subject to appropriate temperature-rated batteries

External Color:

Flat Dark Earth

Use the Maztech Companion App for Quick Setup of Ballistic Profiles.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Maztech Industries is under license. Other trademarks and trade names are those of their respective owners.

The X4-LRF comes with an X4 Low-Profile Remote (12” cable length).

The X4-LRF also comes with:

• Rechargeable CR123 battery

• USB-C charging cable

• Lens cleaning cloth

• Drawstring bag

• X4-LRF Alignment Target

• 5/64 Allen Key

• Mini flathead screwdriver

• Bluetooth® USB Dongle

• Quick Start Guide

• User Manual

• Maztech Patch

• Maztech Stickers

X4-LRF Quick Start Guide

X4-LRF Online Manual

X4-LRF-15M Online Manual

EXPORT NOTICE: The X4-LRF is controlled for export under the International Traffic in Arms Regulations (ITAR), which are administered by the U.S. Department of State and listed on the United States Munitions List (USML). As part of your acceptance of goods, technical data, or services provided, you acknowledge that the unauthorized export, re-export, transfer, or disclosure, directly or indirectly, of the controlled items, technical data, or services is strictly prohibited under U.S. law. Violations of these regulations are subject to severe civil and criminal penalties, including fines and imprisonment.

It is the sole responsibility of the customer to comply with all applicable U.S. export control laws and regulations, including obtaining the necessary licenses or other governmental authorizations prior to exporting, re-exporting, or transferring controlled items, technical data, or services. By acquiring ITAR-controlled products or data, you represent and warrant that you are not prohibited from receiving such items under U.S. export laws.
PLEASE NOTE: Certain jurisdictions may restrict the sale, shipment, or use of this product. It is your responsibility to comply with local laws.

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Maztech Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

A 1534nm laser is eye safe at higher power levels than a 905nm laser, increasing its effective range for longer-distance targets. Additionally, the 1534nm laser offers the advantage of being undetectable by traditional night vision devices, enhancing its covert capabilities and is a preferred laser rangefinder wavelength for military systems.
The X4-LRF™ comes in Flat Dark Earth (FDE). Coming soon: Black or Olive Drab (OD) Green options. Note: The body is Type III Hard Anodize Finished - individual color shades may vary.
Yes, using the included ironsights.
Yes, it comes with a rechargeable CR123 battery.
Class 1 lasers are low powered devices that are considered completely eye-safe.
No. The X4-LRF™ has been designed to run standalone without ever needing to connect to another device or the internet. However, some of the more advanced configuration options are only accessible via a phone.
OLED Display
The X4-LRF™ has an UWB radio allows which allows it to host a personal-area, secured, encrypted network for wireless accessory communication (coming soon). The radio is OFF by default.
Yes. The UWB and Bluetooth® systems can be completely disabled.
The X4-LRF™ ballistic engine supports the vast majority of bullet and weapon types on the market.

Applied Ballistics
The X4-FCS™ and X4-LRF™ ballistic solvers support the vast majority of bullet and weapon types on the market.
The X4-FCS™ and X4-LRF™ ballistic solvers utilize temperature, humidity, pressure, pitch, roll and heading from the onboard sensors. Wind is utilized but must be manually entered (Kestrel compatibility coming soon).
Yes

A laser rangefinder is an electronic device that uses a laser beam to determine the distance to an object.
The 2K utilizes a 905nm commercial-grade laser. The 15K utilizes a 1534nm military-grade laser and is not detectable by night-vision devices. The 15K is quicker at taking ranges and ranging smaller targets than the 2K. Additionally, the 15K can take ranges more reliably than the 2K in adverse conditions such as fog and smoke.
Designed, Engineered, and Manufactured in the USA.
Yes, the X4-LRF™ must be sold to US Persons within the USA. (Coming soon: X4-LRF non-ITAR restricted version)

X4-LRF-2K

lrfnew_edited_edited_edited_edited_edited_edited_edited_edited.png

A rugged multi-pulse laser rangefinder with integrated co-aligned pointers and a built-in weather station.

X4-LRF-15K

X4-LRF-15M

Engineered to provide ultimate range to target capability with instantaneous reliable returns in the same compact package. Ideal for competition shooters.

High-power aiming designed exclusively for Military and Law Enforcement partners.

Maximum range

2,180 yards

2,000 meters

16,400 yards

15,000 meters

16,400 yards

15,000 meters

Aim laser power

4.9 mW visible

0.7 mW IR

Class 3R laser product.

4.9 mW visible

0.7 mW IR

Class 3R laser product.

70.0 mW visible

40.0 mW IR

Class 3B laser product.

Adjustable power levels.

Ranging wavelength

905 nm

NIR-I

1534 nm

SWIR

Undetectable with night vision.

1534 nm

SWIR

Undetectable with night vision.

Weight

12.3 oz

348 g

Including battery.

12.9 oz

367 g

Including battery.

12.9 oz

367 g

Including battery.

Battery life

10,000+ range events

One rechargeable CR123 is supplied.

Wireless connectivity

Bluetooth® Low Energy and Ultra-Wideband (UWB)

Each can be disabled.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Maztech Industries is under license. Other trademarks and trade names are those of their respective owners.

X4-LRF-2K

A rugged multi-pulse laser rangefinder with integrated co-aligned pointers and a built-in weather station.

PURCHASE AT MAGPUL.COM

X4-LRF-15K

X4-LRF-15M

Engineered to provide ultimate range to target capability with instantaneous reliable returns in the same compact package.

High-power aiming designed exclusively for Military and Law Enforcement partners.

PURCHASE AT MAGPUL.COM

LEARN MORE

X4-LRF-2K

lrfnew_edited_edited_edited_edited_edited_edited_edited.png

A rugged multi-pulse laser rangefinder with integrated co-aligned pointers and a built-in weather station.

X4-LRF-15K

Engineered to provide ultimate range to target capability with instantaneous reliable returns in the same compact package. Ideal for competition shooters.

X4-LRF-15M

High-power aiming designed exclusively for Military and Law Enforcement partners.

LRF-2K

LRF-15K

LRF-15M

Maximum range

2,180 yd

2,000 m

16,400 yd

15,000 m

16,400 yd

15,000 m

Aim laser power

4.9 mW vis.

0.7 mW IR

Class 3R laser product.

4.9 mW vis.

0.7 mW IR

Class 3R laser product.

70 mW vis.

40 mW IR

Class 3B laser product.
Adjustable power levels.

Ranging wavelength

905 nm

NIR-I

1534 nm

SWIR

Undetectable with night vision.

1534 nm

SWIR

Undetectable with night vision.

Weight

12.3 oz

348 g

Including battery.

12.9 oz

367 g

Including battery.

12.9 oz

367 g

Including battery.

Battery life

10,000+ range events

One rechargeable CR123 is supplied.

Wireless connectivity

Bluetooth® Low Energy and Ultra-Wideband (UWB)

Each can be disabled.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Maztech Industries is under license. Other trademarks and trade names are those of their respective owners.

User-customizable symbology on daylight-readable display

Designed to meet MIL-STD-810 environmental specs

Compatible with most 30 mm and 34 mm LPVO scopes

Manufactured from solid billet aircraft-grade 7075-T6 aluminum

Designed and manufactured in the USA

X4-FCS Data Sheet

Caliber:

Any

Platform:

STANAG 4694

(Compatible with STANAG 2324 / Picatinny MIL-STD-1913)

Scope Compatibility:

Most 30 mm or 34 mm LPVO scopes

Reticle Color:

Green

External Color:

Black

Weight:

22.6 oz (642 grams) with batteries

Dimensions (L,W,H):

8.2 in x 2.3 in x 3.0 in (209 mm x 59 mm x 77 mm)

Battery Type:

Supplied - Rechargeable USB-C 18650 (2x)

Optional - CR123 (4x)

Battery Life:

1 year at 10 operating hours per week

Connectivity:

Bluetooth® Low Energy, Near-Field Communication (NFC), and Ultra-Wideband (UWB). Each can be disabled.

Ballistics Solver:

Applied Ballistics®

Temperature Rating:

-40°F to +140°F (-40°C to 60°C) subject to appropriate temperature-rated batteries.

Use the Maztech Companion App for Quick Setup of Ballistic Profiles.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Maztech Industries is under license. Other trademarks and trade names are those of their respective owners.

The X4-FCS comes with:

• Two rechargeable 18650 batteries
• Two USB-C charging cables
• Lens cleaning cloth
• Drawstring bag

• T15 Torx wrench
• Loctite® 242
• Mini flathead screwdriver
• Bluetooth® USB Dongle

• Quick Start Guide

• User Manual

• Maztech Patch

• Maztech Stickers

X4-FCS Quick Start Guide

X4-FCS Online Manual

EXPORT NOTICE: The X4-FCS is controlled for export under the International Traffic in Arms Regulations (ITAR), which are administered by the U.S. Department of State and listed on the United States Munitions List (USML). As part of your acceptance of goods, technical data, or services provided, you acknowledge that the unauthorized export, re-export, transfer, or disclosure, directly or indirectly, of the controlled items, technical data, or services is strictly prohibited under U.S. law. Violations of these regulations are subject to severe civil and criminal penalties, including fines and imprisonment.

It is the sole responsibility of the customer to comply with all applicable U.S. export control laws and regulations, including obtaining the necessary licenses or other governmental authorizations prior to exporting, re-exporting, or transferring controlled items, technical data, or services. By acquiring ITAR-controlled products or data, you represent and warrant that you are not prohibited from receiving such items under U.S. export laws.

PLEASE NOTE: Certain jurisdictions may restrict the sale, shipment, or use of this product. It is your responsibility to comply with local laws.

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Maztech Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

1 year at 10 hours per week for typical usage. The X4-FCS™ uses motion activated wake technology allowing the system to sleep when not in use and to instantly turn on when you need it, greatly extending the battery life.
The X4-FCS™ comes with two rechargeable, protected cell 18650s with integrated charger and cable.
You will still be able to use your LPVO, even if the X4-FCS™ batteries are depleted.
Display symbology (reticle and text) is green.
Yes. The X4-FCS™ has been specifically designed to provide ultra-high brightness symbology and text that can be viewed in full sunlight.
The symbology positions and sizes are customizable by the user.
The X4-FCS™ comes in Black. Coming soon: Flat Dark Earth (FDE), or Olive Drab (OD) Green options. Note: The body is Type III Hard Anodize Finished - individual color shades may vary.
Bake-on coating, including low-temperature Cerakote, CANNOT be used on the X4-FCS™. Spray-paint can be utilized as long as proper instructions are followed to avoid damage (see X4-FCS user manual).
The X4-FCS™ weighs 22.6 oz (642g) with 18650 batteries (without LPVO).
1.93 inches (49mm) for a standard 1913 Picatinny Rail.
Billet 7075-T6 Aluminum.
The X4-FCS™ has an NFC system to allow for easy one-touch pairing of X4 Accessories. Simply hold an X4 wireless accessory (coming soon) next to the X4-FCS™ NFC touchpoint and it will instantly pair to your X4-FCS™ secure network. The NFC is OFF by default.
The X4-FCS™ has a UWB radio which allows it to host a personal-area, secured, encrypted network for X4 wireless accessory communication (coming soon). The radio is OFF by default.
No. The X4-FCS™ has been designed to run standalone without ever needing to connect to another device or the internet. However some of the more advanced configuration options are only accessible via a phone.
Yes. The UWB, Bluetooth®, and NFC systems can be completely disabled.

Applied Ballistics
The X4-FCS™ and X4-LRF™ ballistic solvers support the vast majority of bullet and weapon types on the market.
The X4-FCS™ and X4-LRF™ ballistic solvers utilize temperature, humidity, pressure, pitch, roll and heading from the onboard sensors. Wind is utilized but must be manually entered (Kestrel compatibility coming soon).
Yes
Yes. The X4-FCS™ symbology operates equivalent to a first focal plane sight. The symbols zoom with the LPVO zoom.
0.5 MOA.
115 MOA (33 MIL)

No, the X4-LRF™ is sold separately.
No, the X4-FCS™ does not include a scope. The X4-FCS™ is designed to work with a user-supplied 30 mm or 34 mm LPVO.
A LPVO is a Low-Power Variable Optic scope. It usually comes in 30 mm or 34 mm configurations.
The X4-FCS™ is designed to be compatible with most 30 mm or 34 mm LPVOs. A different variant is sold for each LPVO size.
The X4-FCS™ provides enhanced capabilities without reducing your LPVO's performance.
Yes. The X4-FCS™ is compatible with both first focal plane sights and second focal plane sights.
Yes. The X4-FCS™ will display rounds remaining.
Designed, Engineered, and Manufactured in the USA.
Yes, the X4-FCS™ must be sold to US Persons within the USA.

The X4-FCS is compatible with most 30mm and 34mm Low-Power Variable Optics (LPVOs).

Download and print the X4-FCS Scope Compatibility Guide to compare your scope against actual X4-FCS dimensions.

X4-FCS Scope Compatibility Guide

X4-FCS Incompatible LPVO List

Examples of compatible LPVO reticles.

These will not interfere with visibility of the X4-FCS reticle:

Examples of non-optimal LPVO reticles.

These can still be utilized with the X4-FCS using the digital ballistic readout feature (available via advanced menu options):

Purpose-built electronics designed for efficient power usage

Designed to meet stringent environmental specs

Accurate ranging for demanding applications

Manufactured from solid billet corrosion-resistant 7075 aluminum

Designed and manufactured in the USA

Hydra-15 Data Sheet

Rangefinding Laser:

1534 nm

Weight:

63 g

Dimensions (L,W,H):

2.2 x 1.5 x 0.9 in (57 x 38 x 22 mm)

Temperature Rating:

-40°F to 140°F (-40°C to 60°C)

Input voltage:

5.0 V ± 0.2V

Power Consumption (Operational):

< 0.01 W

Power Consumption (During Measurement):

< 2.5 W

Data interface:

3.3 V UART

Measurement Resolution:

0.1 m

Measurement Accuracy (1σ):

< 1 m

Mechanical Shock:

1,500 g, 0.5 ms half-sine

Hydra-15 STEP 3D Model

Hydra-15 IGES 3D Model

EXPORT NOTICE: The Hydra-15 is controlled for export under the International Traffic in Arms Regulations (ITAR), which are administered by the U.S. Department of State and listed on the United States Munitions List (USML). As part of your acceptance of goods, technical data, or services provided, you acknowledge that the unauthorized export, re-export, transfer, or disclosure, directly or indirectly, of the controlled items, technical data, or services is strictly prohibited under U.S. law. Violations of these regulations are subject to severe civil and criminal penalties, including fines and imprisonment.

It is the sole responsibility of the customer to comply with all applicable U.S. export control laws and regulations, including obtaining the necessary licenses or other governmental authorizations prior to exporting, re-exporting, or transferring controlled items, technical data, or services. By acquiring ITAR-controlled products or data, you represent and warrant that you are not prohibited from receiving such items under U.S. export laws.
PLEASE NOTE: Certain jurisdictions may restrict the sale, shipment, or use of this product. It is your responsibility to comply with local laws.

Designed to meet MIL-STD-810 environmental specs

Compatible with Geissele and Reptilia 30mm and 34mm mounts

Manufactured from solid billet aircraft-grade 7075-T6 aluminum

Designed and manufactured in the USA

The X4 Diving Board Mount comes with:

• Four rail mount fasteners

• T15 Torx tool

• Installation instructions

X4 Diving Board Mount User Guide

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Maztech Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

X4-LRF Range Data available instantly in the X4-FCS

Designed to meet MIL-STD-810 environmental specs

Allows for use of X4-FCS I/O Port by an X4 Wired Remote

Rugged breakaway I/O Connector

Designed and manufactured in the USA

Haptic feedback on button click

Designed to meet MIL-STD-810 environmental specs

Compatible with both X4-FCS and X4-LRF

Rugged breakaway I/O Connector

Designed and manufactured in the USA

Tactile response on button click

Designed to meet MIL-STD-810 environmental specs

Compatible with both X4-FCS and X4-LRF

Rugged breakaway I/O Connector

Designed and manufactured in the USA

The X4 Rail-Mounted Remote comes with:

• T15 Torx wrench
• Installation instructions

X4 Rail-Mounted Remote User Guide

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Maztech Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

X4 Low-Profile Remote

X4 Rail-Mounted Remote

X4 FCS-to-LRF Cable

X4 Diving Board Mount

X4-FCS

X4 Low-Profile
Remote

X4 FCS-to-LRF
Cable

X4 Diving Board
Mount