Aero Precision M4E1 AR-15 Pistol, 5.56 NATO, 11.5 in Barrel, KVP 10.5 in M-LOK Handguard, SB Tactical Adjustable Brace
This customized Aero Precision M4E1 AR pistol pairs a 11.5 inch 5.56 NATO barrel with a Kaw Valley Precision 10.5 inch free-float M-LOK handguard for a compact, controllable setup. It features the M4E1 forged lower with integrated upgrades, an SB Tactical adjustable pistol stabilizing brace, and a flat-faced red anodized trigger shoe. Receivers are 7075-T6 aluminum, and the build is cleanly executed with quality components throughout.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Notes: There are light signs of wear and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What’s Included
- 1x 30-round Magpul PMAG AR/M4 GEN M3 polymer magazine
The heart of this pistol is Aero Precision’s M4E1 forged lower marked "MOD M4E1 / CAL MULTI" with the Aero logo. The M4E1 design adds an integrated trigger guard, an enhanced flared magwell, and a threaded bolt-catch pin for secure assembly. Selector pictograms provide clear indexing, and a carbine-style receiver extension supports the brace.
The upper includes a forward assist, shell deflector, and dust cover, with the ejection-port cover laser-marked "5.56 NATO." A T-marked Picatinny top rail runs the full length for aligned mounting of compatible accessories. The action is semi-automatic, direct impingement.
The 11.5 inch barrel is threaded and fitted with an A2-pattern birdcage flash hider secured by a crush washer. A Kaw Valley Precision 10.5 inch free-float M-LOK handguard in 6061-T6 aluminum provides a rigid, lightweight interface while maintaining barrel free-float. This setup balances compact dimensions with usable rail space.
Ergonomics and controls are enhanced with a flat-faced red anodized trigger shoe and a Magpul MOE pistol grip. The SB Tactical adjustable pistol stabilizing brace, built with polymer/metal construction, allows quick length adjustment. Capacity is stated at 30+1, and the build is made in the USA.