M4E1 Threaded Complete Upper, 8" .300 Pistol-Length Blackout Barrel w/ 7.3" Slimline Handguard - Anodized Black

This AR-15 upper features an 8" .300 Blackout barrel, perfect for both close-quarters combat and precision shooting. The pre-attached 7.3" Slimline handguard offers a lightweight, durable platform with ample space for accessories and a secure grip. This upper is the ideal component for a compact, high-performance build.

Includes:

• M4E1 Threaded Assembled Upper Receiver - No Forward Assist
• 7.3" Slimline M-LOK Handguard
• 8" .300 Blackout CMV Barrel
• Low Profile Gas Block and Pistol Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab

M4E1 Threaded Upper Receiver Features:

• New enhanced forging that gives the upper receiver a "billet look"
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door
• No forward assist

Slimline Handguard Features:

• Full top picatinny rail for optional attachments
• Full length MLOK attachment points at the 3, 6, and 9 o’clock positions
• Compatible with low profile gas blocks
• 1.3” Inside diameter
• 1.5” Outside diameter
• Compatible with mil-spec AR15 upper receivers and barrels
• NOT Compatible with M4E1 Enhanced Upper Receivers

8" .300 Blackout Barrel Features:

• Pistol Length
• Twist Rate: 1:7
• Muzzle: 5/8x24 Threaded
• Material: 4150 Crome Moly Vanadium
• Finish: QPQ corrosion resistant finish both inside and out
• Gas Block: .750
• Gas Port: .109
• Gas System Length: Pistol Length
• Weight: 18oz
• M4 Barrel Extension
• HP and MPI Tested