Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers
Any hints on calibration? I can't get beyond the Figure 8 (Calibration failed). :(

all the movements they have to be big and exaggerated slow and smooth.

by fil, Verified Owner, January 3, 2026
Can this be mounted on the side rail of an AR, or does it have to be in the orientation shown in the pictures to work?

Yes, it can be mounted on the side rail.

by BigBfab, Verified Owner, September 23, 2025
Customer Reviews
Helpful Positive Review
One major flaw. by Demmons, March 24, 2024
I'll start with a potential problem that may be related to my specific unit, if it's been off for anymore than 2-3 days it will not turn back on without removing the battery. I feared it was passive draining the battery and had died in the first week...
Read More...
30/30 found this helpful
Helpful Positive Review
Vortex 4000 by Bo, Verified Owner, December 28, 2024
This allow me to have many other devices in one. Not difficult to setup regardless of what type of level one may be on. Pairing this with with range time, my plan within the year is to get into more shooting matches. Great Product to have on your sco...
Read More...
1/1 found this helpful
Helpful Positive Review
Impact 4000 by Jake, Verified Owner, September 23, 2024
It works like advertised. Once you set it up and input your ballistics, it'll quickly range and give you a solution.
1/1 found this helpful
Helpful Positive Review
impact 4000 by Edwin Habacon, Verified Owner, August 2, 2024
Great deal and fast shipping. Great reviews and had to purchase. Will mount on tikka soon!
1/1 found this helpful
Helpful Positive Review
Vortex impact 4000 by Alex, Verified Owner, June 3, 2024
Awesome product supper useful once you get it set up.
1/1 found this helpful
Most Recent Reviews
Wow it’s better than I thought by Joe b, Verified Owner, December 7, 2025
This thing eliminates the guess work. It may not put you dead center of a bullseye target, but it %100. Will save your rounds and guessing. No more walking it in.
Read All 7 Reviews
3 Models Available
Included Accessories
All
Measurement System
All
Search

Product Info for Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder

Shoot farther, faster, and more precise. For long-range competitors and open-country hunters, the Impact 4000 is the all-in-one range and ballistic problem solver that delivers point-and-shoot solutions without coming off the gun.image

Optional: Pair with the Precision Matched Diving Board Mount. Only download the app from Apple App Store or Google Play Store to avoid fake download links that install malware on your device. If you have already downloaded the app from a different link, please uninstall and download again.

Specifications for Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder:

Manufacturer: Vortex
Weather Resistance: Fog Resistant, Waterproof, Shock Resistant, Yes, Rain Resistant
Water Resistance Level: Waterproof
Maximum Range: 4000 yds
Weight: 2.1 oz
Measurement System: Yards
Length: 4.6 in
Color: Tan
Battery Type: Lithium Metal, CR2032, CR123A
Minimum Range: 5 yds
Battery Quantity: 2
Rangefinder Application: Shooting, Hunting
Additional Features: Lithium Metal Battery
Accuracy: +/-0.5 yds
Fogproof: Yes
Display Size: 1.3 in
Display Type: LCD
Shockproof: Yes

Features of Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder

  • Picatinny Mount. Mounts to any picatinny-style rail or rings with a diving board mount.
  • Quick and Reliable Zero. Easy to zero and reliably holds it zero even under heavy recoil.
  • Convenient Wind/Drop Solutions. Easy to read display of wind/drop solutions and the ability to make adjustments while in the shooting position.
  • Integrated GeoBallistics Solver. Equipped with the accurate GeoBallistics Solver backed by a full, up-to-date bullet library.
  • Customize Ballistic Profiles. Customize profiles or use one of the ten preloaded profiles for popular cartridges.
  • On-Board Environmental Sensors. On-board compass and exposed temperature, pressure, and humidity sensors.
  • Wind Bearing Capture Mode. Manually enter speed and direction with patented Wind Bearing Capture Mode.
  • Built-in Range Card Generator. Ability to create and save up to ten range cards with drop and wind corrections.
  • Connect with Vortex Relay. Seemlessly connect to the GeoBallistics App for quick customization and to the included Bluetooth Remote for easy adjustments without leaving the shooting position.
  • Pairs with Third-Party Devices. Connects via the GeoBallistics App with popular weather devices or local weather stations.

Package Contents:

  • Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder
  • Bluetooth Remote
  • Bluetooth Remote Mounting Kit
  • Easy Zero Tool Kit
  • SureFit Cover
  • Lens Cloth
  • Custom Tools
  • CR123 Battery
  • CR2032 Bluetooth Remote Battery

Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder Orderable Models

List of Orderable Models

  • Vortex Impact 4000 Ballistic Rail-Mounted Laser Rangefinder, Tan, 15.25x11.75x14.75, Tan, 4.6in, 16oz, LRF-IMP4000 , MPN: LRF-IMP4000 , UPC: 843829136778 , Code: VX-RF-IMP4000-LRF-IMP4000
  • Ballistic Laser Rangefinder with Mount , MPN: LRF-IMP4000-KIT2 , Code: VX-RF-IMP4000-LRF-IMP4000-KIT2
  • Ballistic Laser Rangefinder with Mount , MPN: LRF-IMP4000-KIT1 , Code: VX-RF-IMP4000-LRF-IMP4000-KIT1
Compare (0)