Go ahead and save your money and get SJC to build your Glock 17……sure you can get the parts and make one that looks like it but it will never run the way you want it to. I have one and it is so nice to take your turn right after someones $3000 race gun poops out because of a their maglips arent tuned right or what ever, and your run goes off without a hitch. My SJC runs both major and non major loads…… and everything runs thru it. New brass, old brass, mixed headstamps, range pick up, its beautiful. And the trigger is to die for; a crisp 2.5lb break its almost as if you think that your pulling the trigger and the gun go off…….again take it from someone that saved for a year to get one…its worth it! All you will need to get in addition to that is some Taylor freelance Magazine extenders to go on your stock glock mags…..just do it!!!!