If you are confused about geting the MP5SD6 Elite or Competition AEGs from Elite Force, here is a video from Airsoft Headquarters to help you by taking them apart... "I'm making this purely because people on the internet genuinely do not know the difference between the different tiers of MP5s from Elite Force and this is a similar issue with other brands. Uneducated players that immediately assume they know what is what, are the ones that know the lease of others. For those that do their diligence in fact checking and making comparisons between multiple reviews and have at least an educated guess and are willing to ask questions to have their facts straightened out are the best players to deal with. The guys that are going onto product listings and leave negative reviews because they havent had it in their hands yet are insufferable and bring the community down with their ignorance. I hope that the series of videos I have released about the MP5 Sd6 Elite are more than enough for individuals to gather enough information to educate themselves."