TSD M700 Spring Rifle Airsoft Gun Upgrades

I have bought one of these and found it needs more range and accuracy. I have looked and believe that it takes TM upgrades but I have only found some springs but I have no idea what else I need if I could get the links to them also i would perfer them from the same site but it doesn't matter that much.

Well a new barrel would help. And spring. Thats all I got

Well I was afraid if i got a stronger new spring i would take one shot and it would be broken.

Honestly for accuracy, you need to get a tighter inner barrel, and use bigger bb's.
A new spring, a tighter inner barrel, and heavier bb's guarentee you better accuracy

Okay, Yes you do need a new barrel, the length would be a 460mm barrel probley 6.1 diameter, but what everybody has said you need to invest in getting a new hop up bucking most likely get a nine ball or a firefly (hard) for the vsr, also clean your barrel it will improve the accuracy