Ultra-lightweight & Durable Polymer Receiver Build Rapid Double-Fold Design Allows for the Stock and Barrel Assembly to be Folded for a Compact Package Special M-LOK Handguard with a Full-Length Picatinny Rail and M-LOK Slot in the 3, 6, and 9 o'clock Positions Left Side Features a Locking Tab to Affix the Barrel Assembly to the Receiver when Unfolded Can Fire with the Stock Folded Flip-up Front & Rear Sights Included 14mm CCW Threaded Barrel Allows for Muzzle Attachments to be Installed Featuring G&G 2.0 MOSFET & ETU Systems Rear-Wired 8mm Ball Bearing Full Metal Version 2 Gearbox CHFS Folding Stock Rear Battery Compartment FCCM 68 Round Mid-Cap Pistol Magazine Featuring New Multi-Follower Feeding System G&G Ifrit 25K Long Axis Motor (25,000RPM) Pre-installed Rear-Mounting Loop for Mounting Slings