Daz, the $15 is an over priced cleverly marketed scam. A 14 gauge 3.25" cannula can be purchased for approximately 12p. The ARS is highly priced as it comes in a 'special package' and to be honest is a bit of a con. I have had a look at the link and it is interesting that they quote the same reference I have quoted above. I can buy a 14g 3.25" cannula for 12p wholesale and it's a waste of money paying for the same device in different packaging.
Is it worth the extra cost just because it is in different packaging and doesn't have a flash chamber? I don't think it is. Buy the identical but much cheaper regular cannula and just store it properly and remove the flash chamber like I and every other paramedic does.
I spoke to a company in China (who I currently import products from) and they have offered to package an identical cannula without flash chamber into a similar package (but different enough not to breach trademark/copyright law) for less than $0.02 FOB (2 cents i.e. 1p) each (based on an MOQ of 100,000). The ARS is not CE marked so cannot be used in Europe but the ones I can get would be CE marked.
Or (and as I keep saying) just use a regular 14g 3.25" cannula and store it properly so the packaging isn't damaged!
If every soldier was taught this skill and issued a 12p cannula (or if you want to buy them individually from retailers such as SP £1.80) then 4% of combat deaths would be prevented!