Gun parts cannot total more then $100.00 per order.
Many times have I ordered more than 100 dollars worth of stuff from Brownells and they ship it up. Including the guy in this thread.
If ANY company errs on the side of caution its Brownells. Even if something is legal to export they sometimes wont if the CDN border doesn't like it.
It also says the total order price on the invoice right on the box.
I've never had a box of gun stuff held at the border, I've had it checked many times, but never held or denied. (for either side of the border)
So either Brownells either REALLY recently changed their rules (within the last month) or my original statement was correct.
ETA
This one was a few months ago:
The following merchandise was shipped 02/16/2009:
100-003-181 CROSS AMBI SLING CONNECTOR 1 29.95
100-003-291 BENELLI M4 CHARGING HANDLE 1 54.99
100-003-575 #12184 MICRO LRP CONVERSION KIT 1 39.95
301-000-568 70116 FOREARM LEFT M4 1 37.50
301-000-569 70117 FOREARM RIGHT M4 1 37.50
*** NEW PRODUCT SUPPLEMENT *** 1
YOUR PRODUCT TOTAL IS: 199.89PP
AIR: 20.75
INSURANCE: 2.60
NRA 'ROUND-UP': 5.00ORDER
TOTAL: 228.24
228.24 HAS BEEN APPLIED TO YOUR CREDIT CARD
It came unmolested from US and Canadian customs.