Matt talks about the three different versions of the G&G PRK9 AEGs that are available at Evike.com. These have stamped steel style receivers with foldable charging handle and enhanced selector switch. There is a inged dust cover with 20mm M1913 Picatinny rail for as well as aluminium M-LOK handguard for grips and other accessories w/ Picatinny top rails. There is an M1913 Picatinny compatible rail on rear of receiver for Picatinny compatible stock attachments and a comfortable polymer grip and enlarge trigger guard. Other features are a rotary click-dialed hop-up, integrated MOSFET and the ETU that improves trigger response and cyclic rate.