The innovative design of these models combines the time-tested ar platform expertise of lwrci with an innovative chamber ring delayed blowback operating system that delivers a unique pistol caliber ar shooting experience.Created from the ground up around us-manufactured glock magazines, the ic-9 is chambered in 9mm featuring the same ambidextrous controls and performance attributes found in lwrci's luxury gas-piston ar lineup.Constructed of advanced aluminum and steel alloys, protected with hard-coat anodizing, ferritic nitrocarburization and nickel-boron surface treatments, the ic-9's monoforge upper receiver with integrated rail-base is lighter and stronger than standard pattern uppers.Coined forging are struck, heat-treated and struck again for precise dimensional accuracy and superior surface finish.Caliber: 9mm LugerBarrel Length: 16"Capacity: 33+1Oal: 30.25'- 34.50"Weight: 6.10 lbsStock Description: AdjustableReceiver Material: AluminumSights: NoneBarrel Description: SteelBarrel Length Range: 16" to 16.99"Weight Range: 6 lbs to 6.99 lbsHand: AmbidextrousStock Finish Group: BlackMetal Finish Group: Brown