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Get a demoSign inThe SDI-55Six Rifle uses a gas impingement system similar to an AR15. It comes stock with quad rails and a billet upper and lower.
Calibers: 5.56, .223, 7.62x39 and 300 Blackout
Color: Black
Weight: 8 lbs
Barrel Length: 16.2”
Length: 32.5” - 36"
Magazine: Standard AR magazine