Have upgraded the whole gun except the upper and lower receiver shell. Parts include Angel custom inner barrel Reaps a+ bucking Cnc hop unit Ra steel trigger group Ra steel bolt The upgraded red nozzle for got the name Npas Steel bolt catch Steel dust cover which is the thing in the bag Real buffer but replaced buffer spring Real magpul stock Magpul mag release Vtac 9 inch rail Comfy pistol grip Flash hider with quick attach suppressor Real afg angled grip Hpa drum with hpa set up 6 we non leaking m4 mags Can also include the stock parts if you want Price includes shipping. Red dot not included.