If your going to get a flatline anyways it is probably worth it. You can always mod an a5 regardless of the starting settup. If your not going to use the flatline though, its cheaper to get a basic setup and the barrell you want.

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'till the sky falls
camo-optional

A5 polished internals,palmer brass barrell (black vented),rt (pen spring mod),palmer male stabilizer, vortex, lightning rod, qeph, techt squishy paddles