Exhibit 5.1

^FLG Flangas Law Group

Writer's email: kps@fdlawlv.com

February 10, 2021

Board of Directors

ComSovereign Holding Corp.

5000 Quorum Drive, STE 400

Dallas, TX 75254

Ladies and Gentlemen:

We have acted as Nevada counsel to ComSovereign Holding Corp., a Nevada corporation (the “Company”), in connection with (i) the Company’s registration statement on Form S-1, Registration No. 333-252780 (the “Initial Registration Statement”), under the Securities Act of 1933, as amended (the “Securities Act”), and the rules and regulations thereunder (the “Rules“), initially filed by the Company with the Securities and Exchange Commission (the “Commission”) on February 5, 2021, as thereafter amended or supplemented, and (ii) a second Registration Statement on Form S-1 filed pursuant to Rule 462(b) pursuant to the Securities Act and the Rules (the “Rule 462(b) Registration Statement,” and together with the Initial Registration Statement, the “Registration Statement”). The Rule 462(b) Registration Statement relates to the registration of the proposed offer and sale of (i) a proposed maximum aggregate offering price of $4,600,000 of shares of the Company’s common stock, par value $0.0001 per share (the “Common Stock” and each such share of Common Stock, a “Share” and collectively, the “Shares”), and (ii) a proposed maximum aggregate offering price of $176,000 of warrants (the “Warrants”) to purchase shares of Common Stock (the “Underwriter Warrant Shares”) to be issued to Kingswood Capital Markets, division of Benchmark Investments, Inc. (the “Representative”), or its designees, as compensation for its services pursuant to an underwriting agreement to be entered into by and between the Company, the Representative and the other underwriters named therein, substantially in the form filed as Exhibit 1.1 to the Initial Registration Statement (the “Underwriting Agreement”). The Shares, the Warrants and the Underwriter Warrant Shares are collectively referred to as the “Securities.”

In rendering the opinion set forth herein, we have examined the originals, or photostatic or certified copies, of (i) the Restated Articles of Incorporation and Bylaws of the Company, each as amended to date, (ii) certain resolutions of the Board of Directors of the Company related to the filing of the Rule 462(b) Registration Statement, the authorization and issuance of the Securities and related matters, (iii) the Rule 462(b) Registration Statement and all exhibits thereto, (iv) the form of Underwriting Agreement, (v) the form of the Warrants, and (vi) such other records, documents and instruments as we deemed relevant and necessary for purposes of the opinion stated herein. In making the foregoing examination we have assumed the genuineness of all signatures, the legal capacity of all natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as photostatic or certified copies, and the authenticity of the originals of such copies. As to all questions of fact material to this opinion, where such facts have not been independently established, we have relied, to the extent we have deemed reasonably appropriate, upon representations or certificates of officers of the Company or governmental officials.

^{3275 South Jones Blvd., Suite 105 | Las Vegas, Nevada 89146 | Phone: (702) 307-9500 | Fax: (702) 382-9452}

Board of Directors

ComSovereign Holding Corp.

February 10, 2021

Page 2 of 2

We are admitted to practice only in the State of Nevada and have not considered, and express no opinion herein as to, the laws of any state or jurisdiction other than the Chapter 78 of the Nevada Revised Statutes of the State of Nevada, as currently in effect. Based upon the foregoing, and subject to the qualifications, assumptions, limitations and exceptions stated herein, we are of the opinion that:

We hereby consent to the filing of this opinion with the Commission as an exhibit to the Rule 462(b) Registration Statement. We further consent to the reference to our firm under the caption “Legal Matters” in the prospectus constituting a part of the Initial Registration Statement. In giving this consent, we are not admitting that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission. This opinion is given as of the date hereof and we assume no obligation to update or supplement such opinion after the date hereof to reflect any facts or circumstances that may thereafter come to our attention or any changes that may thereafter occur.