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This complete upper includes our Slimline M-LOK Handguard! The M-LOK SL Handguard series offers fore-end versatility for the AR15 platform like never before. Using the M-LOK attachment sections, you can customize the setup of your handguard.
Includes:
AR15 Assembled Upper Receiver
13.5" Slimline Handguard
14.5" 5.56 M4 QPQ Barrel, Carbine Length
Low Profile Gas Block and Carbine 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
The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build.
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 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
14.5" 5.56 M4 QPQ Barrel, Carbine Length Features:
Chamber: 5.56
Length: 14.5"
Twist: 1 in 7
Threading: 1/2"x28
Material: 416R Stainless Steel
Finish: QPQ corrosion resistant
Gas Block: .750
Gas Port: .0785
Gas System Length: Carbine
Weight: 25.28 oz
M4 Barrel Extension
HP and MPI Tested