Only one entry is allowed per person though, so make sure you submit the prime choice from your daydreamed arsenal to contest (at) capcom (dot) com. You'll need to title your email as "MH4U WEAPON DESIGN," and the design must be based off one of the 14 weapon classes present in MH4U. Submitting concept descriptions of up to 100 words is allowed, but not required. Participants also need to be 18 or older.
Capcom is accepting submissions until noon EST on May 5, so there's no need to rush through creating your masterpiece. Winners will be awarded with a to-be-determined digital prize, though its monetary value will be $0. You can check out the rest of the contest's terms & conditions here before you start flexing your creative muscle.