Yankee Hill AR-15 Specter XL Black Diamond Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
The upper assembly comes equipped with a chrome lined, diamond fluted 4140 chrome moly steel barrel, 1 in 7" twist rifling and M4 feed ramps. This unique barrel profile is complemented by YHM's lightweight, free floating rifle length Diamond handguard. At 12.58" in length, the Diamond forearm bridges the gap between the barrel nut and the upper receiver's flat top rail for a clean, monolithic look, and also accommodates any number of tactical accessories via its 4 full length Picatinny rails at 12-, 3-, 6-, and 9-o'clock. Additional features include an effective Phantom 5C2 flash hider, a set of flip up iron sights, a low profile gas block at the carbine gas position, a commercial bolt carrier group, charging handle, forward assist, brass deflector and ejection port door. Made in the USA.
- Upper Receiver: A3 Flat-Top, Forged 7075-T6 Aluminum
- Barrel Length: 16"
- Barrel Contour: Medium, Diamond Fluted
- Barrel Material: 4140 Chrome Moly Steel
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: Yes
- Barrel Finish: Parkerized
- Twist Rate: 1 in 7"
- Chamber: 5.56x45mm NATO
- M4 Feed Ramps: Yes
- Muzzle Device: YHM Phantom 5C2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: 0.750"
- Handguard: YHM 12.5" Diamond Series Quad Rail, Rifle Length, Free Float
- Sights: YHM Handguard Mounted Flip-Up Front, YHM Flip-Up Rear
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
- Weight: 4.8 lbs
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
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Product ships from MidwayUSA, separate from any other products on your order due to its size. Products that are Shipped Alone incur separate "Per Order" and "Per Pound" shipping charges.
Product is regulated by the US Department of Transportation (DOT) and cannot be shipped via USPS or air shipping methods. DOT-Regulated products must ship UPS Ground.
Product is restricted by shipping carriers and cannot be shipped to certain locations or via certain shipping methods.
Additional shipping charge for HazMat products. Carriers charge extra to ship packages with products they consider hazardous, such as reloading powder and primers.
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