Manufaturer Part Number: R516G3-556N-16B-BRZSig Sauer 516 G3 BRONZE SpecificationsManufacturer: Sig SauerModel: 516 G3 BRONZEType: RifleAction: Semi-AutoOperating System: Short Stroke Gas PistonCaliber: 5.56 NATOCapacity: 30+1Barrel Length: 16"Barrel Material: Cold Hammer Forged SteelBarrel Finish: BlackBarrel Description: ThreadedTwist Rate: 1:7"Thread Pattern: 1/2x28Muzzle: Flash Hider CompensatorReceiver Material: AluminumReceiver Finish: Bronze CerakoteHandguard: Free Floating M-LOKTrigger: Matchlite Duo CurvedStock: Magpul DTStock Material: PolymerStock Finish: BlackOverall Length: 32.6"36"Height: 7.9"Width: 3.3"Weight: 8 lbsSights: NoneControls: Fully AmbidextrousMagazine Type: AR-15Rail: Picatinny Receiver Rail