Dark Storm Industries DS-15 Bolt Action 5.56x45mm NATO 16inch Upper Receiver

Dark Storm Industries DS-15 Bolt Action 5.56x45mm NATO 16inch Upper Receiver. Bolt action upper designed to convert AR-15 lower receivers to a bolt action configuration. Three models are offered: a full kit including a 13 in Typhoon handguard and a 16 in 5.56 barrel with no gas port drilled; a kit variant without the handguard; and a bare-bones variant where you supply the barrel, bolt and handguard and Dark Storm supplies everything else. This NBHG (no handguard) variant includes a non-ported .750 gas block to cover the existing gas port. Specifications: - Caliber: 5.56x45mm NATO - Barrel Length: 16 in - Barrel Twist Rate: 1-7 - Finish: Anodized - Color: Black - Fabric/Material: Aluminum - Gas Block Journal Size-Diameter: .750 in - Handguard Length: 13 in - Gun Rail: M-LOK - Barrel Material: Steel - Charging Handle Included: No - Magazine Included: No Package Contents: Dark Storm Industries DS-15 Bolt Action 5.56x45mm NATO 16inch Upper Receiver