Details, This new SMG from WE is based on the MP5K and fires in either semi auto, fully auto, or even in three round burst! This has a fully adjustable hop-up and a full steel upper reciever with a plastic lower reciever and foregrip. This comes with one 26rd metal gas magazine and an ambidextrous fire selector. We recommend using green gas with this airsoft gun. This fires around 300fps. As with all Gas Blow Back weapons performance varies depending on ambient temperature and speed of firing. You MUST be 18 or over to purchase this. Please note this is a VCRA applicable Realistic Imitation Firearm. You must be UKARA registered (or have a defence under the VCRA) to purchase this as is, Please contact us or state your UKARA registration number in the comments box when you order. If needed we can spray this for you (at an extra cost of £15.00) so that it meets the requirements to allow anyone over 18 to purchase this. Please select this option from the menu above.