Aero Precision M4E1 5.56 NATO AR-15, 16 inch Barrel, Free-Float M-LOK, Customized with Brake, Flip-Up Front Sight, 2 PMAGs - Very Good Condition
This Aero Precision M4E1 is a U.S.-made AR-15 platform rifle in 5.56 NATO with a 16 inch threaded barrel and an Aero free-float M-LOK handguard. It is a customized configuration featuring an installed side-ported brake/compensator, polymer flip-up front sight, skeletonized angled foregrip/hand stop, rail cover panels, an Adaptive skeletonized pistol grip, and a collapsible carbine stock with QD socket and honeycomb pad. It is in very good overall condition with an excellent, mirror-bright bore and includes two 30-round Magpul PMAG magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor cosmetic scratches and small blemishes are visible on the exterior surfaces.
What’s Included
- Aero Precision M4E1 5.56 NATO semi-automatic rifle
- 2x 30-round Magpul PMAG polymer AR-15 magazines
- Polymer flip-up front sight (installed)
- Skeletonized angled foregrip/hand stop (installed)
- Side-ported muzzle brake/compensator (installed)
- Rail cover panels along the 6 o'clock rail (installed)
- Adaptive skeletonized polymer pistol grip (installed)
- Collapsible carbine stock with honeycomb recoil pad and QD socket (installed)
The M4E1 uses 7075-T6 forged aluminum receivers with a black anodized finish. The lower integrates a trigger guard and a flared magazine well, while the selector markings use pictograms with a left-side safety lever. The upper includes a forward assist, brass deflector, and ejection-port cover. Aero Precision branding is present on the upper receiver, ejection-port cover, and handguard, with factory markings from Tacoma, WA and lower markings reading MOD M4E1 / CAL MULTI.
An Aero free-float aluminum M-LOK handguard provides a continuous 1913 top rail. Rail cover segments are installed along the 6 o'clock rail, and a skeletonized angled foregrip/hand stop is fitted for positive indexing. The configuration supports clean accessory placement along the M-LOK slots.
The 16 inch barrel is threaded and fitted with a side-ported, multi-chamber brake/compensator. The rifle is chambered in 5.56mm NATO, operates semi-automatically, and uses a standard magazine release. Capacity is 30+1 with the included magazines.
Furniture includes a collapsible polymer carbine stock with a QD sling socket and a honeycomb recoil pad; the buttpad bears a knight-head logo. The pistol grip is an Adaptive skeletonized polymer unit. A polymer flip-up front sight is installed. The carbine receiver extension is secured with a castle nut and end plate, and the length of pull is 11.0 inches.
Controls include a manual safety. This U.S.-made Aero Precision build combines the M4E1 receiver set with a free-float handguard and practical, installed accessories suited to the platform.