This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Enhanced Upper Receivers, without provisions for a forward assist. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper receiver itself. Through superior engineering, we have condensed the parts needed to mount a free-floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but we are able to make additional lightening cuts to save weight and allow for more efficient cooling.

Includes:

• M4E1 Enhanced Upper Receiver, No Forward Assist
• 15″ Gen 2 Enhanced Handguard
• 16″ 5.56 CMV Barrel
• Low Profile Gas Block and Mid-Length Gas Tube
• Port Door Assembly
• A2 Flash Hider
• This complete upper receiver does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab.

M4E1 Enhanced, No Forward Assist Upper Receiver Features:

• No Forward Assist
• Custom enhanced forging that gives the upper receiver a “billet look” while maintaining the structural integrity of a forged part.
• Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks

Gen 2 Enhanced Handguard Features:

• 1-piece free float design
• Built in anti-rotation tabs
• Scalloped rails
• Continuous top rail
• 1.78″ inside diameter
• Compatible with low profile gas blocks
• Gen 2 Feature – Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
• M-LOK attachment points

16″ 5.56 Barrel Features:

• 5.56 NATO 16″ Barrel, 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