The CDI rifle features a gas impingement system. It has manual safety 7075T6 aluminum receiver with anodized finish 4150 chrome moly vanadium barrel with Vortex Flash Suppressor and a 15 MLOK freefloat with Magpul MLOK hand stop handguard. Other features include Magpul CTR Carbine stock MOE pistol grip with storage compartment and MBUS Pro metal front and rear sights."