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Congressional Research Service
Informing the legislative debate since 1914


                                                                                       Updated January 24, 2025
The Army's Armored Multi-Purpose Vehicle (AMPV)


Back round
The Army  describes the Armored Multi-Purpose Vehicle
(AMPV)  in a March 14, 2023, press release as follows:
    [The] AMPV is   the replacement for the M-113
    Family of Vehicles within the Armored  Brigade
    Combat  Team (ABCT),  comprising approximately
    30 percent of its tracked vehicle fleet. The Army's
    worldwide  fleet of AMPVs   will include nearly
    3,000 vehicles delivered within the next 20 years.
There are five planned AMPV variants:
    The  M1283 General Purpose (GP) variant
    [Figure 1] provides protected maneuver for soldiers
    alongside ABCT  combat  vehicles during tactical
    operations and provides support to the infantry
    squad during mounted/dismounted  assault during
    tactical operations. The GP variant accommodates
    two crew and four soldiers and is reconfigurable to
    carry one litter.
    The M1284  Medical  Evacuation variant supports
    the ABCT   integration of medical support and
    casualty evacuation (CASEVAC)  as an integrated
    part of the networked combat forward formation,
    enhancing the organic medics who ride with and
    accompany   cavalry units during mounted   and
    dismounted operations. Crew capacity is for three
    crewmembers,    and   a  reconfigurable  crew
    compartment   that  accommodates   four  litter
    casualties, six ambulatory (sitting) casualties, or a
    combination of two  litter and three ambulatory
    casualties.
    The  M1285   Medical  Treatment  (MT)  variant
    integrates advanced medical treatment in a mobile
    surgery suite to the ABCT. The  MT  hosts four
    crewmembers,   which   includes a  medic  and
    Physician Assistant or  Unit  Surgeon,  and  a
    treatment table that can serve to carry one litter
    patient. The vehicle also hosts the capability for
    onboard medical equipment for casualty care.
    The M1286   Mission Command   (MCmd)   variant
    is the cornerstone of the Army's ABCT Network
    Modernization  Strategy. It takes advantage of
    increased size, weight, power, and cooling and
    provides a  significant increase in Command,
    Control, Computers,   Communications,   Cyber,
    Intelligence, Surveillance, and Reconnaissance
    capability. The   variant  accommodates   two
    crewmembers,  and three workstation operators, and
    its hosted network provides full Tactical Command
    Post capabilities at brigade and battalion levels.


    The  M1287 Mortar Carrier (MC) variant
    provides immediate, responsive, heavy mortar fire
    support to the ABCT in the conduct of fast-paced
    offensive operations by utilizing the M-121 Mortar
    System and M-95 Mortar Fire Control System. The
    MC   variant accommodates   four soldiers-one
    vehicle   crewmember     and    three   mortar
    crewmembers.

Figure I. The Armored   Multi-Purpose Vehicle
(AMPV)   General Purpose  Variant


Source: United States Army Acquisition Support Center,
https://asc.army.mil/web/portfolio-item/gcs-ampv/, accessed January
18, 2021.

Program Status
The AMPV   is produced by BAE Systems in York, PA. On
January 25, 2019, the AMPV entered the low-rate initial
production (LRIP) phase. The Army originally planned for
acquiring a total of 2,907 AMPVs, with initial vehicle
delivery in 2020. The AMPV program plans to replace
2,897 M- 113 vehicles at the brigade and below level within
the ABCT. There are an additional 1,922 M-113s
supporting non-ABCT  affiliated units (referred to as
Echelons Above Brigade [EAB] units) that are currently not
included in the Army's modernization plan.


  Low-Rate Initial Production (LRIP) is a programmatic
  decision made when manufacturing development is completed
  and there is an ability to produce a small-quantity set of
  articles. It also establishes an initial production base and sets
  the stage for a gradual increase in the production rate to
  allow for Full-Rate Production (FRP) upon completion of
  Operational Test and Evaluation.
  Full-Rate Production (FRP) is a decision made that allows
  for government contracting for economic production
  quantities following stabilization of the system design and
  validation of the production process.