Indeed it is.
Some helpful criticism from someone who cant draw for shit but knows a little about guns

The lower receiver is not where the bullet comes out, the barrel is swapped with the recoil system here, good work on the folding stock but it has no room for the hinge to work and has no locking latch on the butt for it to stay in place, the cheek would not fit in the divot on top of the stock very comfortably at all especially without a cheekrest or something to prevent it from digging into your face when fired.

All in all, you did great work and just have a few bits of minor errors and such that could be easily fixed in later drawings. Nice work on the lines and construction of the weapon though. I like the muzzle break and sights on the rifle too. Well done with it all things considered.

Im a nerd.