Aero Precision M4E1 AR-15 Pistol, 5.56 NATO, 14.5 in Barrel, ATLAS R-ONE Handguard, Holosun AEMS Core Red Dot
This Aero Precision M4E1 AR-15 pattern pistol combines a 14.5-inch threaded barrel with a three-prong flash hider, a lightweight ATLAS R-ONE free-float handguard, and an ambidextrous charging handle. It includes a factory-installed Holosun AEMS Core red-dot optic and comes in excellent condition. The build features Aero’s forged aluminum receivers with hard-anodized finish and thoughtful controls that make it an efficient, well-executed pistol configuration.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm presents very light handling wear, with a few small scratches and blemishes visible on exterior surfaces under close inspection.
What's Included
- Original case
- Holosun AEMS Core red dot sight (installed)
- Five 30-round magazines
The heart of this pistol is Aero Precision’s M4E1 receiver set in forged aluminum with a hard-anodized finish. The lower features an integrated trigger guard and a flared magwell, while the upper includes a forward assist, shell deflector, and ejection-port dust cover. The bolt carrier exhibits a silver finish, and the pistol uses a smooth pistol receiver extension with no stock or brace.
The 14.5-inch barrel is threaded and fitted with a three-prong flash hider. It runs a direct-impingement, rotating-bolt system with a low-profile gas block and gas tube visible through the handguard windows.
An Aero Precision ATLAS R-ONE free-float handguard (aluminum) delivers a continuous 12 o’clock Picatinny rail and M-LOK interface, extending nearly to the muzzle for ample mounting space while keeping weight down.
Controls are streamlined and practical: an ambidextrous charging handle with extended latches, a standard right-side magazine release, and a manual safety selector. The pistol wears a polymer AR-15 pistol grip and accepts detachable STANAG-pattern magazines.
A Holosun AEMS Core red-dot optic with a red reticle is installed on the top rail. Manufacturer/location markings note Lakewood, WA on the lower and Tacoma, WA on the handguard. Capacity is 30+1 with 5.56mm NATO.