AMENDED AND RESTATED REVOLVING CREDIT NOTE

Exhibit 10.3

AMENDED AND RESTATED REVOLVING CREDIT NOTE

FOR VALUE RECEIVED, TVI CORPORATION, a Maryland corporation (“TVI”), CAPA MANUFACTURING CORP., a Maryland corporation (“CAPA”), SAFETY TECH INTERNATIONAL, INC., a Maryland corporation (“Safety Tech”) and SIGNATURE SPECIAL EVENT SERVICES, INC., a Maryland corporation (“Signature TVI”), jointly and severally (each of TVI, CAPA, Safety Tech and Signature TVI, a “Borrower”; TVI, CAPA, Safety Tech and Signature TVI, collectively, the “Borrowers”), promise to pay to the order of BRANCH BANKING AND TRUST COMPANY, a North Carolina banking corporation (the “Lender”), the principal sum of SEVEN MILLION DOLLARS ($7,000,000) (the “Principal Sum”), or so much thereof as has been or may be advanced/readvanced to or for the account of the Borrowers pursuant to the terms and conditions of the Financing Agreement (as hereinafter defined) under the Revolving Credit Facility (as that term is defined in the Financing Agreement), together with interest thereon at the rate or rates hereinafter provided, in accordance with the following:

Commencing as of the date hereof and continuing until repayment in full of all sums due hereunder, the unpaid Principal Sum shall bear interest in accordance with Section 2.5 (Interest and Certain Fee Provisions) of the Financing Agreement.

The unpaid Principal Sum, together with interest thereon at the rate or rates provided above, shall be payable as follows:

(a) Interest only on the unpaid Principal Sum shall be due and payable in accordance with Section 2.5.3 (Payment of Interest) of the Financing Agreement; and

(b) Unless sooner paid, the unpaid Principal Sum, together with interest accrued and unpaid thereon, shall be due and payable in full on the Revolving Credit Termination Date (as defined in the Financing Agreement).

The fact that the balance hereunder may be reduced to zero from time to time pursuant to the Financing Agreement will not affect the continuing validity of this Note or the Financing Agreement, and the balance may be increased to the Principal Sum after any such reduction to zero.

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Upon the occurrence of an Event of Default (as hereinafter defined), the unpaid Principal Sum shall bear interest thereafter at the Post-Default Rate (as defined in the Financing Agreement) until such Event of Default is cured.

If the Borrowers shall fail to make any payment under the terms of this Note within ten (10) days after the date such payment is due, the Borrowers shall pay to the Lender on demand a late charge equal to five percent (5%) of such payment.

All payments, made on account of this Note shall be applied first to the payment of any late charge then due hereunder, second to the payment of any prepayment fee then due hereunder, third to the payment of accrued and unpaid interest then due hereunder, and the remainder, if any, shall be applied to the unpaid Principal Sum. All payments on account of this Note shall be paid in lawful money of the United States of America in immediately available funds during regular business hours of the Lender at its principal office in Baltimore, Maryland or at such other times and places as the Lender may at any time and from time to time designate in writing to the Borrowers.

Without implying any limitation on the Borrowers’ obligation to pay the Early Termination Fee as and when provided in Section 2.5.2 (Early Termination Fee) of the Financing Agreement, the Borrowers may prepay the Principal Sum in whole or in part at any time without premium or penalty.

This Note is the “Revolving Credit Note” described in an Amended and Restated Financing and Security Agreement dated as of even date herewith by and among the Borrowers and the Lender (as amended, modified, restated, substituted, extended and renewed at any time and from time to time, the “Financing Agreement”). The indebtedness evidenced by this Note is included within the meaning of the term “Obligations” as defined in the Financing Agreement. This Note is one of the “Financing Documents” (as that term is defined in the Financing Agreement).

This Note is secured as provided in the Financing Agreement.

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The occurrence of any one or more of the following events shall constitute an event of default (individually, an “Event of Default” and collectively, the “Events of Default”) under the terms of this Note:

(a) The failure of the Borrowers to pay to the Lender when due any and all amounts payable by the Borrowers to the Lender under the terms of this Note; or

(b) The occurrence of an event of default (as defined therein) under the terms and conditions of any of the other Financing Documents.

Upon the occurrence of an Event of Default, at the option of the Lender, all amounts payable by the Borrowers to the Lender under the terms of this Note shall immediately become due and payable by the Borrowers to the Lender without notice to the Borrowers or any other person, and the Lender shall have all of the rights, powers, and remedies available under the terms of this Note, any of the other Financing Documents and all applicable laws. The Borrowers and all endorsers, guarantors, and other parties who may now or in the future be primarily or secondarily liable for the payment of the indebtedness evidenced by this Note hereby severally waive presentment, protest and demand, notice of protest, notice of demand and of dishonor and non-payment of this Note and expressly agree that this Note or any payment hereunder may be extended from time to time without in any way affecting the liability of the Borrowers, guarantors and endorsers.

The Borrowers promise to pay to the Lender on demand by the Lender all costs and expenses incurred by the Lender in connection with the collection and enforcement of this Note, including, without limitation, reasonable attorneys’ fees and expenses and all court costs.

Any notice, request, or demand to or upon the Borrowers or the Lender shall be deemed to have been properly given or made when delivered in accordance with Section 8.1 (Notices) of the Financing Agreement.

Each right, power, and remedy of the Lender as provided for in this Note or any of the other Financing Documents, or now or hereafter existing under any applicable law or otherwise shall be cumulative and concurrent and shall be in addition to every other right, power, or remedy provided for in this Note or any of the other Financing Documents or now or hereafter existing under any applicable law, and the exercise or beginning of the exercise by the Lender of any one or more of such rights, powers, or remedies shall not preclude the simultaneous or later exercise by the Lender of any or all such other rights, powers, or remedies. No failure or delay by the Lender to insist upon the strict performance of any term, condition, covenant, or

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agreement of this Note or any of the other Financing Documents, or to exercise any right, power, or remedy consequent upo