M4E1 Threaded 16" 5.56 Carbine Length M4 QPQ Barrel No Forward Assist Complete Upper W/ 13.5" Slimline Handguard - Anodized Black

This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist.The slimline line of handguards have a unique milling profile, designed to maximize grip ergonomics and minimize weight while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Includes: M4E1 Assembled Upper Receiver without Forward Assist Slimline Handguard 16" 5.56x45mm NATO Carbine-Length M4 Barrel 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 M4E1 Upper With No Forward Assist 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 Slimline Handguard Features: Full top picatinny rail for optional attachments Full length MLOK attachment points at the 3, 6, and 9 o’clock positions Continuous top rail Compatible with low profile gas blocks 1.3” Inside diameter 1.5” Outside diameter Compatible with mil-spec AR15 upper receivers and barrels NOT Compatible with M4E1 Enhanced Upper Receivers 16" 5.56 Carbine-Length Barrel Features: 5.56x45mm NATO QPQ Finish M4 Profile .750" gas block journal Carbine-Length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 Flash Hider