Yankee Hill AR-15 Specter XL Black Diamond Upper Assembly 5.56x45mm NATO 1 in 7" Twist 16" Fluted Barrel Chrome Lined with 12.5" Diamond Quad Rail Free Float Handguard, Flip-Up Sights, Flash Hider
- Magpul PMAG M3 Magazine AR-15 223 Remington Black... $13.25 - $18.95 Select Options
- Magpul PMAG M2 MOE Magazine AR-15 223 Remington 30-Round... $12.30 - $13.25 Select Options
- MagPul Low Profile Picatinny Rail Cover 6-1/2" Polymer... $11.35 Select Options
- CMMG Lower Receiver Parts Kit AR-15... $65.99 Available
- AR-Stoner Receiver Extension Buffer Tube Assembly 6-Position... $64.99 Available
- Prince 50 Designs Bullet Button Magazine Release Wrench... $2.99 Available
- MagPul Stock CTR Collapsible AR-15 Carbine Synthetic... $75.95 Select Options
- MagPul MOE Plus Pistol Grip AR-15 Rubber... $22.75 Select Options
- Tetra Gun Grease 1 oz Tube... $5.19 Available
- Glockworx Race Connector Glock All Models 2 lb... $12.99 Available
- Power Custom Universal Combo Wrench AR-15 Buttstock, 1911... $6.99 Available
- Prince 50 Designs Bullet Button Magazine Release Assembly... $10.95 Available
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 Diamond Series, Rifle Length, Free Float
- Sights: YHM Handguard Mounted Flip-Up Front, YHM Flip-Up Rear
- 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.