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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-249722, 333-208667 and 333-186575) on Form S-8 of our report dated June 18, 2026, with respect to the financial statements and the supplemental schedules of General Dynamics Corporation 401(k) Plan 6.0.

/s/ KPMG LLP

McLean, Virginia

June 18, 2026