Bear Creek Arsenal BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver M4 1-7 1/2x28 Flash Hider 416R

Bear Creek Arsenal BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver M4 1-7 1/2x28 Flash Hider 416R. 56 Nato upper is compatible with any mil-spec AR-15 lower. Magazine not included. Specifications for Bear Creek Arsenal BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver: Manufacturer: Bear Creek Arsenal Caliber: 5.56x45mm NATO Barrel Length: 10.5 in Barrel Profile: M4 Threads per Inch: 1/2x28 Muzzle Device: Flash Hider Color: Black Gun Model: AR-15 Handguard Length: 10 in Gun Rail: M-LOK Gun Make: AR Platform Weight: 4.25 lb Flutes: No Package Contents: Bear Creek Arsenal BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver Bear Creek Arsenal UABA398556CM410517SS10ASR: BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver M4 1-7 1/2x28 Flash Hider 416R