Later this year, the US Army’s Abrams SEPv4 project is expected to undergo rigorous tests. In the coming months, several plans are expected to be approved well. The Director, Operational Test and Evaluation (DOT&E) has elaborated on what is to come.

The Abrams M1A2 System Enhancement Package Version 4 (SEPv4) is a minor improvement over the Abrams M1A2 SEPv3. The Abrams SEPv4 is intended to improve lethality and survivability for the Army. This will be accomplished primarily through the incorporation of technologies into the platform’s optics and fire control system. As a result, the M1147 Advanced Multi-Purpose Round will be more effective.

The Army is currently writing the Abrams SEPv4 Test and Evaluation Master Plan, which it hopes to submit to DOT&E for approval by the middle of this year.

The Abrams SEPv4 will undergo Full-Up System-Level testing, exploitation testing, Controlled Damage Experiments, and Modeling and Simulation (M&S) in the first half of 2023. DOT&E recommends an operational test of adequate fire for this purpose. According to DOT&E, this will evaluate the tank’s performance, suitability, and survivability.

The Abrams M1A2 SEPv4 has numerous upgrades. With the third generation, the tank will have an improved primary gunner’s sight unit (GPS). A forward-looking infrared link (3GEN FLIR) is planned, as well as an improved laser range finder (LRF) and color day camera.

In addition, the SEPv4 has an improved commander’s primary sight with 3GEN FLIR, an LRF with a laser pointer, and a color day camera. The tank’s lethality has been increased by allowing the fire control system to digitally communicate with the new M1147 advanced multi-purpose round.

The tank’s expected version will also have improved firing accuracy thanks to the addition of a weather sensor. SEPv4 will include enhanced onboard diagnostics, a better thermal management system, and a better laser warning receiver system.