The Yankee Hill Machine Black Diamond Specter XL Carbine Top End is an excellent starting point for your AR-15 build, or upgrade. This is a high quality complete upper that comes with Bolt Carrier Group, Charging Handle, KR7 Mid-Length Handguard, and Phantom 5C2 Flash Hider for excellence in form and function. Don't accept inferior products made in an unknown part of the world - go with the American Made Yankee Hill Machine KR7 Carbine Top End!
Specifications and Features:
Forged 7075-T6 Aluminum YHM Flat Top Upper Receiver
Caliber: 5.56x45mm NATO .223 Remington
Barrel: 16" 4140 Steel, Heat Treated to RC 25-32
Twist Rate: 1:7
"T" Marked Upper Receiver
Forward Assist
Phantom 5C2 Flash Hider and Compensator
KR7 Mid-Length Keymod Handguard
Low Profile Gas Block
Charging Handle
Bolt Carrier Assembly
Black
Specifications and Features:
Forged 7075-T6 Aluminum YHM Flat Top Upper Receiver
Caliber: 5.56x45mm NATO .223 Remington
Barrel: 16" 4140 Steel, Heat Treated to RC 25-32
Twist Rate: 1:7
"T" Marked Upper Receiver
Forward Assist
Phantom 5C2 Flash Hider and Compensator
KR7 Mid-Length Keymod Handguard
Low Profile Gas Block
Charging Handle
Bolt Carrier Assembly
Black
What else is needed to make this operational? Thanks.
Answer:
This needs sights and a complete lower. Check out item # 2-SPKSTLC200-SBS-CFS and SCP-276-030 and SCP-276-031.
What ammunition does this take?
Answer:
This upper is compatible with both .223 Remington and 5.56 NATO ammunition.
does it come with the front and rear sights, or need to order separately?
Answer:
They would be order separately. We recommend item number ARR-1047-019