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Program · United States · U.S. Army

Low Altitude Stalking and Strike Ordnance (LASSO)

U.S. Army program for man-portable loitering munitions that give infantry precision strike beyond line of sight.

DevelopmentU.S. ArmyLASSOLow-Altitude Stalking and Strike Ordnance
FY2027 request
$169M
RDT&E + Procurement
Total acquisition cost
$209M
Then-year $
Awarded
$31.8M
obligated · up to $34.7M ceiling
Awards
1
1 recipients
Participants
1
1 prime
Products
1
Built for or fielded under it

Cost to the governmentFY2027 request $169M

Budget by fiscal year
Fiscal yearAppropriationRequestEnactedQtyBudget lineSource
FY2027RDT&E$59.2M——0605345A (project A58)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed
FY2027Procurement$110M——6872C91500 (item C91521)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed
FY2026RDT&E$75.0M$73.3M—0609345A (project A49)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed
FY2026Procurement$80.4M$67.8M1036000I46000 (item I46012)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed
FY2025RDT&E—$16.4M—0604827A (project LS2)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed
FY2025Procurement—$121M996872C91500 (item C91521)U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller)Confirmed

What the government budgets and pays for this program, from budget justification books, appropriations, acquisition reports and contract announcements. Budget years are then-year dollars unless marked; program totals and unit costs state their dollar basis. Award values (what a company was obligated) are under Awards.

Participants1

Prime

1

Roles as recorded: a prime holds the contract, teammates and subcontractors build under it, competing bidders bid against it, operators field the result.

Awards1

Obligated is money committed so far; ceiling is the most the award can reach.

Products1

Switchblade 400

AeroVironment

Medium-range, man-portable anti-armor loitering munition with aided target recognition, under 40 lb all-up round; selected for Army LASSO prototyping in 2026.

Development

News1

Sources7

Government2

  1. 1
    CompanyU.S. Army Selects AV’s Switchblade 400 for LASSO Program

    AeroVironment · May 4, 2026 · Supports Government award, Program, Program · program participant:aerovironment

    “awarded a prototype agreement from the U.S. Army for the Low-Altitude Stalking and Strike Ordnance (LASSO) program to support the rapid development, delivery and testing of the Switchblade® 400 loitering munition”
  2. 2
    Government recordFPDS: Other Transaction Agreement W91CRB269A009 (AeroVironment, Inc)

    FPDS-NG · Apr 29, 2026 · Supports Government award · obligated amount

    “New OTHER TRANSACTION AGREEMENT W91CRB269A009 awarded to AEROVIRONMENT, INC for the amount of $28,621,578.89; Description: LOW ALTITUDE STALKING AND STRIKE ORDNANCE (LASSO) HARDWARE PROTOTYPE AGREEMENT - SWITCHBLADE 400; Total obligated: 31778217.06; Total base and all options: 34747977.44”

Other5

  1. 3
    Government recordArmy FY 2026 Budget Estimates: Missile Procurement, Army Justification Book

    U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller) · Supports Cost · amount

    “6872C91500 / FAMILY OF LOW ALTITUDE UNMANNED SYSTEMS ... Procurement Quantity (Units in Each) - - 99 ... Gross/Weapon System Cost ($ in Millions) - - 120.599”
  2. 4
    Government recordArmy FY 2026 Budget Estimates: RDT&E Justification Book Vol 3c, Budget Activity 5C

    U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller) · Supports Cost · amount

    “LS2: Lethal Semi-Autonomous Aerial Unmanned Sys-Eng Dev 16.363 ... Title: Low Altitude Stalking and Strike Ordnance (LASSO)”
  3. 5
    Government recordArmy FY 2026 Budget Estimates: RDT&E Justification Book Vol 4d, Budget Activity 9

    U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller) · Supports Cost · amount

    “A49: Lethal Semi-Autonomous Aerial Unmanned Sys-Eng Dev 74.972 - 74.972”
  4. 6
    Government recordArmy FY 2027 Budget Estimates: Missile Procurement, Army Justification Book

    U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller) · Supports Cost · amount

    “C91521 Low Altitude Stalking and Strike Ordnance (LASSO) FY 2027 funding request of $109.517 million supports the procurement of 53 Fire Control Units (FCU) and 430 All-Up Rounds (AURs)”
  5. 7
    Government recordArmy FY 2027 Budget Estimates: RDT&E Justification Book Vol 3d, Budget Activity 5D

    U.S. Army, Assistant Secretary of the Army (Financial Management and Comptroller) · Supports Cost · amount

    “A58: Lethal Semi-Autonomous Aerial Unmanned Sys-Eng Dev 73.292 59.236 - 59.236”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.