Read this before you decide to spend the $$ on a Springer.....
http://www.canadiangunnutz.com/forum/showthread.php/1283498-SAI-Re-worked
IF you want an M-305 that doesn't need a bunch of tweaking..... Buy from marstar.
http://www.marstar.ca/dynamic/product.jsp?productid=85814
If you want a M-305 for a couple of bucks less, buy from anybody else out there, but you have a 50/50 chance of "alignment" issues....
Marstar is the only Importer of Chinese manufactured M-14 Pattern rifles that does a full QC check on rifles before they are shipped form China..... Everyone else seems to take their chances once they hit our shores. I have seen 3 NIB rifles at a local retailer (Admittedly I was doing QC checks for said retailer before they sold them) that had bolts that would drop below the safety bridge under normal operation. I have seem NIB rifles with barrels 6+ degrees over and under indexed. I have had over a dozen rifles from Marstar come across my bench..... Not a single one had a problem!
SAI does not have a warranty centre in Canada. Period. Full stop. This means you basically have no warranty on a SAI rifle (I suppose you could spend $300 to Export it from Canada to the US, and then spend an additional $300+ to Import it back into Canada). If you live in the US, at any point in the lifespan of a SAI rifle, you can send it to Springfield and they will fix anything that may be wrong with it. For the price of the parts or under warranty (as the case may be).
I am currently at 7 M-14 pattern rifles in the lock-up (one is soon going to a new home). One of them is a springer, the rest are norks. The ONLY thing SAI does better than a NIB M-305B from Marstar is the Parkerizing job, and the SAI (in some cases) comes with a Boyds Walnut stock.
My $.02