Depends on the motors you're putting in it. The tube will most likely be fine, the fins have potential to flutter off at highspeeds.
The best way to find out (short of building it and pushing the button
) Is a simulation with programs like Openrocket (free) or Rocsim ($$)
Which motors are you wanting to put in it, Estes motors, or composite motors? The stresses on the rocket will be very different
Be very mindful of propellant weight. If your rocket contains over 125 grams of propellant, it becomes FAA class 2 (High-power) and requires an airspace waiver to fly legally
Weights of estes motors: (from thrustcurve.org)
24mm D12: 21 grams
24mm E12: 36 grams
29mm E16: 40 grams
29mm F15: 60 grams
2x E16s -> 80gr, good
2x F15s -> 120gr, good
2xE16s + 2 D12s -> 122gr, just under limit
2xE16s + 4 D12s -> 164gr, over the limit
Composite motors come with their own difficulties like pressurization time when lit, and no direct staging ability (requires electric ignition)
Don't get discouraged! Keep building and flying!