Product Description
MCS AR-15 5.56 NATO 4.5" INCH MICRO PISTOL UPPER M-LOK HANDGUARD
The MCS Micro Upper is built around a 4.5-inch 5.56 NATO MCS HBAR barrel with a micro-length gas system, a MCS billet upper receiver with an enlarged .458-style ejection port, and a 4-inch free-float M-LOK handguard.
Features:
- 4.5-inch MCS HBAR barrel, 4150 CMV steel, 1:7 twist, Parkerized finish
- Micro-length gas system
- MCS Billet upper receiver, NOFA configuration, enlarged .458-style ejection port
- 4-inch free-float M-LOK handguard with full-length top Picatinny rail
- A2 GI birdcage flash hider, rated for 5.56/.223, on 1/2x28 threads with 1/2-inch black crush washer
