I have a basically Brand new KWA RM4 electric recoil gun. Only used once indoors. This thing is super fun to use,good recoil,and the functioning bolt catch makes this more fun to use than any electric I've used. It comes with the original magazine,and 3 kwa rm4 pmags. All mags make the bolt catch work,so when you are out of ammo the gun stops firing until a new mag is inserted. They are able to be switched from 30 rounds-60 rounds instantly. Which is awesome for realism. The gun also works with standard m4 mags. It had a daniel defense block II rail installed. It has a quick change spring system also. You can switch from 350fps to 400/410fps in just a minute on the field. I am including the cqb spring,field spring,4 magazines,and a 7.4v lipo battery also. These guns function best with 11.1v though. It has been wired to deans also. I have around $400 in this setup,maybe more. The asking price is $325 shipped which is more than fair. Pm if interested.