i have an XD9 and i love it, its a great weapon, and Ive talked several people out of buying glocks and turned them onto the XD. as for parts, i have never encountered a problem with the weapon, and ive been through about 3000 rounds, and if it came down to a simple spring, i would swap out for don's or canyon creek anyways, why get stock. go to a shop that has a range that offers you to try weapons before you buy, shoot a glock, then shoot an xd, you will notice the difference right away. and you will buy the xd. amazing weapons. just as a side note, i have a $1200 Sig i picked up about 6 months before the xd, love the Sig and if you want the best buy a Sig, but as nice as the weapon is and as accurate and practical as it might be, i carry the xd.