Purchase the Aero Precision M4E1-T 7.5" 5.56 Pistol Upper Assembly - No Logo here!

This upper assembly includes the ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The 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.

  • M4E1 Threaded Assembled Upper Receiver
  • 7.3″ M-LOK ATLAS R-ONE Handguard
  • 7.5″ 5.56 Pistol Length CMV Barrel
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product comes assembled
  • The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
  • New enhanced forging that gives the upper receiver a “billet look”
  • M4 Feedramps
  • .250 takedown pin holes
  • Includes port door and forward assist installed
  • 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
  • Chamber: 5.56
  • Length: 7.5″
  • Twist: 1 in 7
  • Threading: 1/2″x28
  • Material: Chrome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out
  • Gas Block: .750

Take a look at our AR-15 Parts Deals here!

Below are some of our other favorite deals this weekend:

Dirty Bird AR-15 Lower Receiver Pin and Spring Kit - $9.95

KAK AR-15 H2 Heavy Buffer - $17.95

Anderson Lower Parts Kit w/ Stainless Hammer & Trigger - $35.95

Aero Precision AR-15 Dust Cover / Ejection Port Cover Kit - $9.95

KAK Industry 1/2-28 Compensator - $9.95

Rise Armament RA-535 Advanced Performance Drop-In Trigger - $169.95

Rise Armament Patriot High Performance Trigger 3.5lb – Flat - $129.95

JP Enterprises Gen 2 Silent Capture Spring – AR-15 - $109.95

Aero Precision AR-15 MOE SL Lower Parts Kit Minus FCG - $39.95

Vortex CF-RD2 Crossfire Red Dot - $99.95

Vortex RAZOR AMG UH-1 Gen 2 Holographic Sight - $479.95

Swampfox Raider Micro Prism 1x20mm 6 MOA Sight - $179.95

Swampfox Saber 5x36mm 4 MOA Prism Scope - $259.95

Swampfox Kraken Closed Emitter 1x16mm 3 MOA Sight - $239.95

Winchester USA10MM 180 Grain 10mm FMJ Handgun Ammunition – 500 round case - $174.95

Fiocchi Hyperformance 5.7x28mm 40GR HP Ammo Rifle Ammo – 500 Rounds - $209.95

Mossberg 590 Shockwave 14″ 12 Gauge 5Rd Pump-Action Shotgun – Stainless - $449.95

Plus, we have a bunch more available on the site! Thanks and have a great day!