Diemaco

Diemaco (1984) Inc.
Company type	Private (division of Héroux-Devtek Inc.)
Industry	Defence
Founded	1974
Fate	Acquired
Successor	Colt Canada Corporation May 24, 2005
Headquarters	Kitchener, Ontario, Canada
Products	Firearms, weapons

Diemaco was a Canadian defence company based in Kitchener, Ontario, that manufactured the C7 family of rifles under a licence from Colt.

History

The company was formed in 1974 under Devtek Corporation,^[1] effectively replacing the arms supply from government owned Canadian Arsenal Limited.

In 2000, it was acquired by Héroux-Devtek Inc.^[2]^[3]

On May 20, 2005, it was acquired by Colt Defense for $18.2 million.^[4] As a result, Héroux-Devtek revamped the Aerospace and Defense division to the Aerospace division.^[5]

Colt Canada relaunched the brand in 2014.^[6]^[7]

References

^ "Diemaco SA-15.7 and SA-20 semi-automatic rifles, new from Colt Canada!". all4shooters. 2014-09-15. Retrieved 2026-03-21.
^ "Corporations Canada Online Filing Centre". Industry Canada. Retrieved 7 April 2011.
^ "Héroux-Devtek Completes the Sale of its Logistics & Defence Division, Diemaco" (PDF). Héroux-Devtek Inc. 20 May 2005. Retrieved 7 April 2011.
^ "FORM S-1". www.sec.gov. Retrieved 2026-03-21.
^ "A FOUNDATION FOR SUSTAINABLE GROWTH" (PDF).
^ TheGunMag (2014-08-12). "Colt Canada brings back Diemaco brand for Canadian rifle buyers". TheGunMag - The Official Gun Magazine of the Second Amendment Foundation. Retrieved 2026-03-21.
^ "Diemaco SA-15.7 and SA-20 semi-automatic rifles, new from Colt Canada!". all4shooters. Archived from the original on 2021-02-28. Retrieved 2026-03-21.

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[1] "Diemaco SA-15.7 and SA-20 semi-automatic rifles, new from Colt Canada!". all4shooters. 2014-09-15. Retrieved 2026-03-21.

[ifc-2] "Corporations Canada Online Filing Centre". Industry Canada. Retrieved 7 April 2011.

[3] "Héroux-Devtek Completes the Sale of its Logistics & Defence Division, Diemaco" (PDF). Héroux-Devtek Inc. 20 May 2005. Retrieved 7 April 2011.

[4] "FORM S-1". www.sec.gov. Retrieved 2026-03-21.

[5] "A FOUNDATION FOR SUSTAINABLE GROWTH" (PDF).

[6] TheGunMag (2014-08-12). "Colt Canada brings back Diemaco brand for Canadian rifle buyers". TheGunMag - The Official Gun Magazine of the Second Amendment Foundation. Retrieved 2026-03-21.

[7] "Diemaco SA-15.7 and SA-20 semi-automatic rifles, new from Colt Canada!". all4shooters. Archived from the original on 2021-02-28. Retrieved 2026-03-21.

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