which client date and type (RE or main)?
Only 1 reason i have seen when it doesn't show up = Client is not picking up the right sprite file.
Why it would happen?
1) Client is not seeing the file in the proper folder <- you didn't put it in the proper folder.
2) Client is not using the proper file name for the sprite <- This usually happens when client uses a prefix/suffix in the file name for the wrong weapon type. How it picks up the weapon type is dependent on whether or not your client reads ItemInfo.lua <= depends on client date & client type .