Aero Precision M4E1 5.56 NATO AR-15 — BCM MCMR-13 Upper, 14.5 in Barrel Pinned/Welded to 16.25, Free-Float M-LOK, GL-CORE Stock, Folding Sights
This custom-configured M4E1 pairs an Aero Precision forged lower with a BCM MCMR-13 upper for a well-matched, feature-rich AR-15. It uses a 14.5 inch barrel with a permanently attached multi-port muzzle device for a total barrel length of approximately 16.25 inches. The rifle includes a free-float M-LOK handguard with a continuous T-marked top rail, folding sights, and quality furniture from FAB Defense and Magpul. Condition is very good with an excellent, mirror-bright bore.
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: There are markings from previous handling and signs of use. Refer to pictures.
What’s Included
- Folding back-up sights (installed)
- Short M-LOK vertical foregrip (installed)
- FAB Defense collapsible stock (installed)
- Magpul MOE pistol grip (installed)
- 1x 30-round polymer magazine (ProMag)
The foundation is an Aero Precision M4E1 forged lower with an integrated trigger guard, a flared magwell, and a threaded bolt-catch screw. The receiver is finished in matte black anodizing and is built on the AR-15 platform with a semi-automatic, direct impingement operating system.
The upper is a BCM MCMR-13 assembly featuring a free-float M-LOK handguard and a continuous T-marked top rail for consistent mounting reference. A low-profile gas block is used under the handguard to maintain a clean, streamlined profile.
The barrel is 14.5 inches and uses a pinned and welded multi-port muzzle device to achieve an overall barrel length of approximately 16.25 inches. This setup delivers the shorter 14.5 inch profile with a permanent attachment to meet the listed overall length.
Controls and furniture include a FAB Defense GL-CORE collapsible stock, a Magpul MOE pistol grip, and a short M-LOK vertical foregrip. Folding front and rear sights are installed, and the bolt carrier features a spider logo.