Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7

AERO PRECISION M4E1-T-NO FA-Comp. Upper, 16" 5.56 Mid, RM15

This upper receiver features the M4E1 Threaded Upper Receiver without a forward assist, paired with Aero Precision's ATLAS R-ONE Handguard. It includes a 16" 5.56 CMV barrel with a mid-length gas system, low profile gas block, mid-length gas tube, port door assembly, and an A2 flash hider. This complete upper does not include a BCG or charging handle.

Features:

• M4E1 Threaded Upper Receiver, No Forward Assist
• ATLAS R-ONE 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 CH

ATLAS R-ONE Handguard Features:

• Full top picatinny rail for optional attachments
• Quick disconnect sling sockets at 3, 6, and 9 o'clock
• 1.3" Inside diameter, 1.5" Outside diameter
• Compatible with mil-spec AR15 upper receivers and barrels
• 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