This is a KJW hi capa that I changed some of the parts to stock tm hi capa parts and upgraded some also has a DVC slide Has a upgraded hammer spring (not a tm part but after market) a AIP charging handle, a 140% nozzle spring, a LCC guide plug, a upgraded recoil spring. a TM sear spring, guide rod, and inner barrel I believe But, it’s missing a screw so the nozzle spring won’t stay in so that’s all you need for it to work. No mag this was a parts gun Price negotiatable