Specifications
Product: Show Stopper 16.5-inch AR-15 5.56 NATO Rifle Upper Build Kit, Plan B Sentinel Caged Flash Hider
Barrel: "Satellite" 5.56x45mm 16.5" QPQ Nitride Medium Profile AR-15 Barrel
Caliber: 5.56x45mm NATO
Barrel Length: 16.5-inch
Twist Rate: 1:7
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: QPQ Nitride
Barrel Profile: Medium
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Mid-Length
Gas Block Size: 0.75
Gas Block: Micro Low-Profile Gas Block, .750 O.D Barrel Steel
Upper Receiver: AR-15 Upper Receiver, M4 Feed ramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard: MLOK AR-15 Handguard W/ Partial Picatinny Rail, Integrated Handstop, Anti-Rotation Tabs, Trapezoid Cuts
Handguard Length: 15-inch
Handguard Style: M-Lok
Handguard Color: Black
Muzzle Device: Breek Arms Plan B Sentinel Caged Flash Hider
Muzzle Thread Pitch: 1/2x28
Muzzle Device Material: 4140 hardened steel
Muzzle Device Finish: Nitride
Muzzle Device Design: Closed-tine, fully shrouded (caged) for superior flash suppression
Gas Tube Length: Mid-Length
