Aero Precision AR-15 M4A1 Clone 5.56 NATO, 16 in M4-Profile, Carbine-Length Gas, A2 FSB, Hardcoat Anodized
This custom AR-15 is built on an Aero Precision lower engraved with the classic "PROPERTY OF USA M4 CARBINE" rollmark and SAFE/SEMI/AUTO selector legends (markings only), paired with a 16-inch M4-profile upper. It features a carbine-length gas system, A2 front sight base, and a barrel marked "C MP 5.56 NATO 1/9." The right-side "AERO PRECISION LLC TACOMA, WA" rollmark reflects pre-2021 Aero branding, adding desirable context for Aero enthusiasts.
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: This firearm is in great shape. There are some minor scratches and blemishes present. The bore is clean and shiny.
What’s Included
- Aero Precision AR-15 M4A1 Clone 5.56mm rifle
- 1x 30-round Magpul PMAG polymer STANAG-pattern magazine
Built on Aero Precision’s clone-engraved lower, this rifle mirrors the iconic M4 pattern with "PROPERTY OF USA / M4 CARBINE / CAL 556MM" markings and selector legends. The right-side "AERO PRECISION LLC / TACOMA, WA" rollmark is indicative of Aero’s pre-2021 branding. The receivers are 7075-T6 aluminum with a hardcoat anodized finish.
The installed upper uses a 16-inch M4-profile barrel with M203 step, carbine-length gas system, and A2 birdcage flash hider. The barrel is marked "C MP 5.56 NATO 1/9," indicating magnetic particle inspection and a 1:9 twist suitable for common 5.56 NATO loads. The muzzle is threaded, and the system follows the direct impingement pattern.
Sighting hardware includes a fixed A2 front sight base with bayonet lug and sling swivel. There is no rear sight installed. The flat-top upper provides a Picatinny rail, along with a dust cover and forward assist. The upper receiver also shows small stamped "C" and "F" letters near the rear left rail.
The carbine uses two-piece polymer handguards and a 6-position collapsible polymer stock for familiar M4 ergonomics, paired with an A2-style pistol grip. It accepts STANAG-pattern magazines and ships with one Magpul PMAG. Capacity is 30+1, and controls include a standard manual safety selector.