This listing is for an M4-platform build in CQB length. It was originally a stock G&G Combat Machine on which I replaced the front end with a 10.5 inch barrel and a PTS ZEV wedge-lock rail and mock gas block. The stock was replaced with a PTS EPS. The magazine release and related parts were replaced with a G&P steel unit. Painted/accessorized as shown. Internally it is stock with the exception of including a brand-new custom made r-hop/barrel/hop unit combo by Bloomie’s Airsoft. Very light, handy, and easy to run. Shoots in the 350 range. Any questions please ask. Price is OBO.