UPDATE JANUARY 06, 2019: I BELIEVE STEP #3 IS NOW AUTOMATED COMPLETELY.
This details, basically, how to figure out what a purchase at Irunguns US SITE will cost you based on what my own purchase worked out to. I DO NOT work for Irunguns, and they certainly don't do me any favors. (I get treated like every other customer.)
1. Order firearm from US site. Price will be item cost plus flat $25.00 shipping to Irunguns in Canada, in US currency.
2. On Irunguns end (I mean the US site Irunguns.com) the item(s) will be charged in US currency to the payment option you choose.
3. Wait for the order to enter the Canadian system then Fill out the Import form completely.
4. The Item will be imported and arrive at the Canadian location sometime after the 15th following your order. Example: If you buy on January 20th, it will be shipped to Canada sometime after February 15th. Their cut off is supposed to be every 15th, but recent comments show Christmas & Shot Show delay, so December's will not be until January.
5. Then you will get an email link to make payment for the GST on the US site price and the shipping from Irunguns Canadian location to you. It was in Canadian Funds for my order.
6. Item gets shipped: viola. My timeline was about three weeks after the 15th. Example: Buy January 20th, import February 18th, email February 20th, on the doorstep March 3rd (all an estimate only: may vary)
So, a $1000.00US item total price of just a single item will look like this: (Blue is US currency, Red is Canadian currency)
$1000.00 item
+ $25.00 ship
= $1025.00USD
x exchange rate (assume 1.2500 here)
= 1282.00CAN (rounded)
+ Canadian shipping (assume $25.00CAN again)
= 1307.00
x GST (5%)
= 1372.00(rounded) as the complete price of the purchases
Then the charges, if using the same credit card, will look like:
$1025.00 USD for purchase and to Canada shipping (That will have to get an exchange rate! That's why some totals look wrong.)
$90.00 CAN for shipping to your house and GST
The numbers might not be perfect, but that's the process in a nutshell after I purchased from Irunguns in US the first time.