ARC Group Worldwide (ARCW) 8-K Changes in Registrant's Certifying Accountant

Exhibit 16.1

U.S. Securities and Exchange Commission
Office of the Chief Accountant
100 F Street, NE
Washington, DC 20549
	Audit · Tax · Advisory
	Grant Thornton LLP
	707 17th Street, Suite 3200
	Denver, CO 80202-3336
	T 303.813.4000
	F 303.839.5711
	www.GrantThornton.com

December 16, 2015

Re:ARC Group Worldwide, Inc.

File No. 001-33400

Dear Sir or Madam:

We have read Item 4.01 of Form 8-K of ARC Group Worldwide, Inc. dated December 15, 2015, and agree with the statements concerning our Firm contained therein.

Very truly yours,

/s/ GRANT THORNTON LLP

Grant Thornton LLP

U.S. member firm of Grant Thornton International Ltd