M4E1 Threaded 16″ 5.56 M4 Complete Upper Receiver w/15″ M-LOK ATLAS R-ONE Handguard Anodized Black

Description

Includes:

• M4E1 Threaded Assembled Upper Receiver
• ATLAS R-ONE Handguard of choice
• 16″ 5.56 Rifle Length CMV Barrel
• Low Profile Gas Block and Rifle Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons – look at related products below

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

M-LOK ATLAS R-ONE Handguard Features:

• Full top picatinny rail for optional attachments
• Quick disconnect sling socket 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
• Learn More about our NEW ATLAS Handguards

16″ 5.56 Rifle Length Barrel Features:

• 5.56 NATO 16″ Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
• .750 gas block journal
• Mid-length gas system, .0785 gas port
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider

Shipping to FFL Dealer Required
No

Made In America
Yes

Platform
AR15

Complete Upper Series
ATLAS

Caliber
5.56 NATO

Barrel Length
16

Weight (oz)
67 oz