AR15 16" 5.56 Carbine-Length M4 CHM/PH Complete Upper w/ 13.5" M-LOK Slimline Handguard - Anodized Black

This complete upper includes our Slimline M-LOK Handguard! The M-LOK SL Handguard series offers unprecedented versatility for the AR15 platform. Utilize the M-LOK attachment sections to customize your handguard setup.

Includes:

• M4E1 Threaded Assembled Upper Receiver
• 13.5" Slimline Handguard
• 16" 5.56 Carbine Length M4 CHM/PH Barrel
• Low Profile Gas Block and Carbine Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These items can be added separately under the Finish Your Build tab
• The muzzle brake included with this complete upper receiver is NOT pinned nor welded to the barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" length as defined by the ATF for a rifle build.

M4E1 Threaded Upper Receiver Features:

• New enhanced forging provides the upper receiver with a "billet look"
• New picatinny profile seamlessly integrates with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed

Slimline 15 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

16" 5.56 Carbine Length M4 CHM/PH Barrel Features:

• Chamber: 5.56
• Length: 16"
• Twist: 1 in 7
• Threading: 1/2"x28
• Material: 4150
• Finish: Phosphate exterior, Chrome Lined Bore
• Gas Block: .750
• Gas System Length: Mid
• M4 Barrel Extension