Aero Precision M4E1 Assembled AR 15 Upper Receiver 5.56x45mm Mid-Length 16" Mid Length Barrel EM-15 Gen 2 M-LOK Handguard Anodized Black
APAR640251M7

Aero Precision assembled anodized black upper receiver from 7075-T6 forged aluminum. Includes a mid-length gas system, an EM-15 handguard with continuous top rail. Threaded 16" barrel in 5.56 in 1:7 twist and M4 feed ramp.