Document:

EX-4.1

 Exhibit 4.1 

NUMBER UNITS 
 U- 

SEE REVERSE FOR CERTAIN DEFINITIONS 

CUSIP [●] 
 FIRST LIGHT
ACQUISITION GROUP, INC. 
 UNITS CONSISTING OF ONE SHARE OF CLASS A COMMON STOCK AND ONE-THIRD
OF ONE 
 REDEEMABLE WARRANT TO PURCHASE ONE SHARE OF CLASS A COMMON STOCK 

THIS CERTIFIES THAT                is the owner
of                Units. 
 Each Unit
(“Unit”) consists of one (1) share of Class A common stock, par value $0.0001 per share (“Common Stock”), of First Light Acquisition Group, Inc. a Delaware corporation (the
“Company”), and one-third (1/3) of one redeemable warrant (each whole warrant, a “Warrant”). Each whole Warrant entitles the holder to purchase one
(1) share (subject to adjustment) of Common Stock for $11.50 per share (subject to adjustment). Only whole Warrants are exercisable. Each Warrant will become exercisable commencing on the later of (i) the date that is thirty (30) days
after the Company’s completion of a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination with one or more businesses (each a “Business Combination”), or
(ii) twelve (12) months from the closing of the Company’s initial public offering, and will expire unless exercised before 5:00 p.m., New York City Time, on the date that is five (5) years after the date on which the Company completes
its initial Business Combination, or earlier upon redemption or liquidation (the “Expiration Date”). The shares of Common Stock and Warrants comprising the Units represented by this certificate are not transferable separately
prior to                , 2021, unless Guggenheim Securities, LLC elects to allow separate trading earlier, subject to the Company’s filing of a Current Report on
Form 8-K with the Securities and Exchange Commission containing an audited balance sheet reflecting the Company’s receipt of the gross proceeds of its initial public offering and the Company issuing a
press release announcing when separate trading will begin. No fractional warrants will be issued upon separation of the Units and only whole Warrants will trade following such separation. The terms of the Warrants are governed by a Warrant
Agreement, dated as of                 , 2021, between the Company and Continental Stock Transfer & Trust Company, as warrant agent (the “Warrant
Agent”), and are subject to the terms and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the
Warrant Agent at 1 State Street, 30th Floor, New York, New York 10004, and are available to any Warrant holder on written request and without cost. 

Upon the consummation of the Business Combination, the Units represented by this certificate will automatically separate into shares of Common
Stock and Warrants comprising such Units. 
 This certificate is not valid unless countersigned by the Transfer Agent and Registrar of the
Company. 
 This certificate shall be governed by and construed in accordance with the internal laws of the State of New York. 

Witness the facsimile signature of its duly authorized officers. 
  

					
	  
	 		 	  

	Co-President and Secretary	 		 	Chief Financial Officer
			
	 Continental Stock Transfer & Trust Company,

as Transfer Agent and Registrar
	 		 	
			
	  
	 		 	

 By: 
 Title:

 FIRST LIGHT ACQUISITION GROUP, INC. 

The Company will furnish without charge to each unitholder who so requests, a statement of the powers, designations, preferences and relative,
participating, optional or other special rights of each class of stock or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights. 

The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out
in full according to applicable laws or regulations: 
  

																	
	TEN COM	  	–	  	as tenants in common	  		  	UNIF GIFT MIN ACT	  	–	  	  
	 	Custodian	 	  

	TEN ENT	  	–	  	as tenants by the entireties	  		  		  		  	(Cust)	 		 	(Minor)
							
	JT TEN	  	–	  	as joint tenants with right of survivorship and not as tenants in common	  		  		  		  	under Uniform Gifts to Minors Act
		  		  		  		  		  		  	  

(State)

 Additional abbreviations may also be used though not in the above list. 

For value received,                  hereby
sell, assign and transfer unto                  

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE 
  

 
 (PLEASE PRINT OR TYPEWRITE NAME AND
ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) 
  
  

 
  

                        
Units represented by the within Certificate, and do hereby irrevocably constitute and appoint 

                 Attorney to transfer the said Units on the books of
the within named Company with full power of substitution in the premises. 
 Dated 

 

	
	  

	Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

  

	
	Signature(s) Guaranteed:
	
	  

	THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO RULE 17Ad-15 UNDER THE SECURITIES

  
 2 

 EXCHANGE ACT OF 1934, AS AMENDED (OR ANY 

SUCCESSOR RULE). 
 In each case, as more fully
described in the Company’s final prospectus dated                , 2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust account established in connection with the Company’s initial public offering only in the event that (i) the Company redeems the shares of its Common
Stock sold in its initial public offering and liquidates because it does not consummate an initial Business Combination by the date set forth in the Company’s amended and restated certificate of incorporation, (ii) the Company redeems the
shares of its Common Stock sold in its initial public offering in connection with a stockholder vote to amend the Company’s amended and restated certificate of incorporation (A) to modify the substance or timing of the Company’s
obligation to allow redemptions in connection with the Company’s initial Business Combination or to redeem 100% of the shares of its Common Stock sold in its initial public offering if it does not consummate an initial Business Combination by
the date set forth in the Company’s amended and restated certificate of incorporation or (B) with respect to any other provision relating to the rights of holders of the Common Stock or pre-initial
Business Combination activity or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective shares of Common Stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder
approval of the proposed initial Business Combination) setting forth the details of a proposed initial Business Combination. In no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust account. 

  
 3EX-4.2

 Exhibit 4.2 

NUMBER 
 C- 

 

			
		 	 SHARES
 SEE REVERSE FOR

CERTAIN DEFINITIONS
 CUSIP [●]

 FIRST LIGHT ACQUISITION GROUP, INC. 

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 

CLASS A COMMON STOCK 
  

			
	This Certifies that	 	 

			
		
	is the owner of	 	 

 FULLY PAID AND NON-ASSESSABLE SHARES OF THE CLASS A COMMON STOCK, PAR VALUE OF $0.0001
EACH, OF 
 FIRST LIGHT ACQUISITION GROUP, INC. 

(THE “CORPORATION”) 

transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly endorsed. 

The Corporation will be forced to redeem all of its shares of Class A common stock if it is unable to complete a business combination by the date set
forth in the Corporation’s amended and restated certificate of incorporation, all as more fully described in the Corporation’s final prospectus dated
                , 2021. 
 This certificate is not valid unless
countersigned by the Transfer Agent and registered by the Registrar. 
 Witness the seal of the Corporation and the facsimile signatures of its duly
authorized officers. 
  

							
	Co-President and Secretary	 		 	[Corporate Seal] Delaware	 	Co-President
	  
	 		 		 	  

	 Continental Stock Transfer & Trust Company,

as Transfer Agent and Registrar
	 		 		 	
				
	  
	 		 		 	
	By:	 		 		 	
	Title:	 		 		 	

 FIRST LIGHT ACQUISITION GROUP, INC. 

The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or
other special rights of each class of stock or series thereof of the Corporation and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held
subject to all the provisions of the Corporation’s amended and restated certificate of incorporation and all amendments thereto and restatements thereof and resolutions of the Corporation’s Board of Directors providing for the issue of
securities (copies of which may be obtained from the secretary of the Corporation), to all of 

 
which the holder of this certificate by acceptance hereof assents. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they
were written out in full according to applicable laws or regulations: 
  

																	
	TEN COM	  	–	  	as tenants in common	  		  	UNIF GIFT MIN ACT	  	–	  	  
	 	Custodian	 	  

	TEN ENT	  	–	  	as tenants by the entireties	  		  		  		  	(Cust)	 		 	(Minor)
							
	JT TEN	  	–	  	as joint tenants with right of survivorship and not as tenants in common	  		  		  		  	under Uniform Gifts to Minors Act
		  		  		  		  		  		  	  

(State)

 Additional abbreviations may also be used though not in the above list. 

For value received,                  hereby
sells, assigns and transfers unto 
  
  

(PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S)) 

 
  

(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S)) 

 
  
  

 
  

 
 Shares of the capital stock represented by the within
Certificate, and do hereby irrevocably constitutes and appoints 
  
  

Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. 

Dated: 
  

 
  

 
 NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST
CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. 

Signature(s) Guaranteed: 
 By 

 
  
  

 
 THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE
GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO RULE 17Ad-15 UNDER THE SECURITIES
EXCHANGE ACT OF 1934, AS AMENDED (OR ANY SUCCESSOR RULE). 
 In each case, as more fully described in the Corporation’s final prospectus dated
                , 2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held
in the trust account established in connection with the Corporation’s initial public offering only in the event that (i) the Corporation redeems the shares of Class A common stock sold in its initial public offering and liquidates
because it does not 

  
 2 

 
consummate an initial business combination by the date set forth in the Corporation’s amended and restated certificate of incorporation, (ii) the Corporation redeems the shares of its
Class A common stock sold in its initial public offering in connection with a stockholder vote to amend the Corporation’s amended and restated certificate of incorporation (A) to modify the substance or timing of the
Corporation’s obligation to allow redemptions in connection with its initial business combination or to redeem 100% of the shares of its Class A common stock sold in its initial public offering if it does not consummate an initial business
combination by the date set forth in the Corporation’s amended and restated certificate of incorporation or (B) with respect to any other provision relating to the rights of holders of the Class A common stock or pre-initial business combination activity, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective shares of Class A common stock in connection with a tender offer (or proxy
solicitation, solely in the event the Corporation seeks stockholder approval of the proposed initial business combination) setting forth the details of a proposed initial business combination. In no other circumstances shall the holder(s) have any
right or interest of any kind in or to the trust account. 

  
 3

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