The Squires M16 and M16R are not prohib. Nor are they restricted.
The Armi Jager and Kassar Ap74's are restricted.
I know because I have several of each.
I was on CFC's website to doublecheck. Without getting into "public" detail I was told Squires m16 and AK22 were prohibited. Milarm in Edmonton has them on there wall as well tagged prohibited. I am going to call Firearms Canada and ask them to get this checked. But on the site this is what is listed. I only cut and pasted what is discussed here.
http://www.cfc-cafc.gc.ca/factsheets/r&p_e.asp
Former Prohibited Weapons Order No. 13 (in effect since January 1, 1995)
The firearm of the design commonly known as the AK-47 rifle, and any variant or modified version of it except for the Valmet Hunter, the Valmet Hunter Auto and the Valmet M78 rifles, but including the:
(z.22) Mitchell AK-22;
(z.23) Mitchell AK-47
note it says Variant
Firearms Prescribed as Restricted
This list of restricted firearms specified in the December 1, 1998 Criminal Code regulations includes all firearms that have been restricted by a former Order in Council
• The firearm of the design commonly known as the M-16 rifle, and any variant or modified version of it, including the:
Any 22 calibre rimfire variant, including the:
Mitchell M-16A-1/22,
Mitchell M-16/22,
Mitchell CAR-15/22, and
AP74 Auto Rifle.
I hope after my call to CFC I will have good news for us all. My edit... I called CFC and Milarm. Both confirmed that the 16's and AK22's are PROHIBITED the 16's listed as Restricted is an error on the website!! If you lucked out and got it registered, it was an error on CFC's part. There is a good chance that if you sold your firearm CFC would flag it and you would not be able to sell it, and you would loose you registration as well. This is what I was told so I am passing it on.