Aero Precision M4E1 Enhanced .300 AAC Blackout AR-15 Semi-Auto Rifle, 16 in Threaded Barrel, Free-Float M-LOK, Black
This Aero Precision M4E1 Enhanced in .300 AAC Blackout pairs the brand's reinforced receiver design with a free-float M-LOK handguard and a 16-inch threaded barrel with an A2-pattern flash suppressor. Built on 7075-T6 aluminum receivers with a Type III hard-coat anodized black finish, it includes Magpul furniture and the M4E1 Enhanced upper/handguard interface secured by multiple countersunk Torx screws. It is in excellent condition and comes with a 30-round AR-15 pattern aluminum magazine.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use. Please refer to the pictures for a detailed view of the surfaces and components.
What’s Included
- Aero Precision M4E1 Enhanced .300 AAC Blackout semi-automatic rifle
- 1x 30-round AR-15 pattern aluminum magazine (USGI-style)
The M4E1 Enhanced upper features Aero Precision's robust handguard interface with multiple countersunk Torx screws that secure a free-float aluminum M-LOK handguard. The handguard provides M-LOK slots at the 3, 6, and 9 o'clock positions, and the flat-top upper includes a Picatinny rail for mounting compatible accessories.
Chambered in .300 AAC Blackout (7.62x35mm), this rifle uses a 16-inch barrel with a threaded muzzle and an A2-pattern flash suppressor installed. The configuration supports the cartridge's versatility while maintaining a compact, well-balanced handling profile.
The receivers are 7075-T6 aluminum with a Type III hard-coat anodized black finish. Hallmark M4E1 touches are present, including an integrated trigger guard, a flared magwell, and a threaded bolt-catch pin. Receiver markings include "MOD M4E1 / CAL MULTI" and "AERO PRECISION / LAKEWOOD, WA."
Controls and furniture follow the AR-15 pattern, with a standard right-side magazine release and a manual safety. The rifle uses a direct-impingement, semi-automatic action with right-side ejection, a forward assist, and an ejection port cover. It wears a Magpul adjustable carbine stock on a carbine receiver extension and a Magpul polymer pistol grip; length of pull is 11 inches as configured. Capacity is 30+1.