SEC Filing Document

Company: DUKE Robotics Corp.
Ticker: DUKR
CIK: 1638911
Filing Type: S-1
Document Type: EX-4.2
Date Filed: 2026-04-01
Accession Number: 0001213900-26-037765
Exchange: OTC
SIC Code: 3721
SIC Description: Aircraft
URL: https://www.sec.gov/Archives/edgar/data/1638911/000121390026037765/ea028409601ex4-2.htm

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Exhibit 4.2

Form of Representative’s Warrant

THE REGISTERED HOLDER OF THIS PURCHASE WARRANT
BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE, OR BE THE SUBJECT OF ANY HEDGING, SHORT
SALE, DERIVATIVE, PUT, OR CALL TRANSACTION THAT WOULD RESULT IN THE EFFECTIVE ECONOMIC DISPOSITION OF THIS PURCHASE WARRANT OR THE UNDERLYING
SECURITIES FOR A PERIOD OF ONE HUNDRED EIGHTY (180) DAYS IMMEDIATELY FOLLOWING THE COMMENCEMENT OF SALES OF THE SECURITIES ISSUED IN CONNECTION
WITH THIS OFFERING EXCEPT AS HEREIN PROVIDED AND THE REGISTERED HOLDER OF THIS PURCHASE WARRANT AGREES THAT IT WILL NOT SELL, TRANSFER,
ASSIGN, PLEDGE OR HYPOTHECATE, OR BE THE SUBJECT OF ANY HEDGING, SHORT SALE, DERIVATIVE, PUT, OR CALL TRANSACTION THAT WOULD RESULT IN
THE EFFECTIVE ECONOMIC DISPOSITION OF, THIS PURCHASE WARRANT OR THE UNDERLYING SECURITIES FOR A PERIOD OF ONE HUNDRED EIGHTY (180) DAYS
IMMEDIATELY FOLLOWING THE COMMENCEMENT OF SALES OF THE SECURITIES ISSUED IN CONNECTION WITH THIS OFFERING TO ANYONE OTHER THAN (I) MAXIM
PARTNERS LLC OR ANY UNDERWRITER OR A SELECTED DEALER IN CONNECTION WITH THE OFFERING, OR (II) A BONA FIDE OFFICER OR PARTNER OF MAXIM
PARTNERS LLC OR OF ANY SUCH UNDERWRITER OR SELECTED DEALER.

WARRANT TO PURCHASE COMMON STOCK

DUKE ROBOTICS CORP.

Warrant Shares: [●] Initial Exercise Date:

THIS WARRANT TO PURCHASE COMMON
STOCK (the “Warrant”) certifies that, for value received, [●] or its assigns (the “Holder”)
is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after
[●], 2026, the date that is six (6) months from the effective date of the Registration Statement (the “Initial Exercise
Date”), and in accordance with FINRA Rule 5110(f)(2)(G)(8), prior to 5:00 p.m. (New York time) on [●], 2031, the date
that is the fifth anniversary of the effective date of the Registration Statement (the “Termination Date”) but not
thereafter, to subscribe for and purchase from DUKE ROBOTICS CORP., a Nevada corporation (the “Company”), up to [●]
([●]) shares of Common Stock, par value $0.0001 per share (the “Common Stock”), of the Company (the “Warrant
Shares”), as subject to adjustment hereunder. The purchase price of one share of Common Stock under this Warrant shall be equal
to the Exercise Price, as defined in Section 2(b).

Section 1. Definitions.
In addition to the terms defined elsewhere in this Agreement, the following terms have the meanings indicated in this Section 1:

“Affiliate”
means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common control
with a Person, as such terms are used in and construed under Rule 405 under the Securities Act.

“Business Day”
means any day except any Saturday, any Sunday, any day which is a federal legal holiday in the United States or any day on which banking
institutions in the State of New York are authorized or required by law or other governmental action to close.

“Commission”
means the United States Securities and Exchange Commission.

“Common Stock Equivalents”
means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire at any time Common Stock, including,
without limitation, any debt, preferred stock, right, option, warrant or other instrument that is at any time convertible into or exercisable
or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

“Exchange Act”
means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

“Person”
means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company,
joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

“Registration Statement”
means the effective Registration Statement on Form S-1, including all information, documents and exhibits filed with or incorporated by
reference into such registration statement, as amended (File No. 333-[_]) which registers the sale of the Units, shares of Common Stock,
the Warrants, and the Warrant Shares, among others, and includes any Rule 462(b) Registration Statement.

“Representative’s
Warrants” means this Warrant and all other warrants issued to the underwriters and their designees, pursuant to the terms of
the Underwriting Agreement.

“Rule 144”
means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time,
or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose and effect as such Rule.

“Securities Act”
means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

“Subsidiary”
means any subsidiary of the Company and shall, where applicable, also include any direct or indirect subsidiary of the Company formed
or acquired after the date hereof.

“Trading Day”
means a day on which the Trading Market is open for trading.

“Trading Market”
means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question: the
NYSE American; the Nasdaq Capital Market; the Nasdaq Global Market; the Nasdaq Global Select Market; or the New York Stock Exchange (or
any successors to any of the foregoing) or the OTCQB or OTCQX Markets operated by OTC Markets group, Inc., or any similar over-the-counter
market.

“Underwriting Agreement”
means the underwriting agreement, dated as of [●], 2026, between the Company and Maxim Group LLC as representative of the underwriters
named therein, as amended, modified or supplemented from time to time in accordance with its terms.

“VWAP”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or
quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date)
on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based on a Trading Day from 9:30
a.m. (New York City time) to 4:02 p.m. (New York City time)), (b) if the Common Stock is then listed or quoted on the OTCQB or OTCQX and
if OTCQB or OTCQX is not a Trading Market, the volume weighted average price of a share of Common Stock for such date (or the nearest
preceding date) on the OTCQB or OTCQX as applicable, (c) if Common Stock is not then listed or quoted for trading on the OTCQB or OTCQX
and if prices for Common Stock are then reported on the Pink Open Market (or a similar organization or agency succeeding to its functions
of reporting prices), the most recent bid price per share of Common Stock so reported, or (d) in all other cases, the fair market value
of the Common Stock as determined by an independent appraiser selected in good faith by the Holder and reasonably acceptable to the Company,
the fees and expenses of which shall be paid by the Company.

Section 2. Exercise.