his barreled upper receiver is built around the M4E1 Threaded upper receiver, which is designed for use with standard barrel nut setups. The receiver is forged from 7075-T6 aluminum and precision machined to M4E1 specs, ensuring a proper fit with Mil-Spec and aftermarket parts. It’s finished with a matte black hardcoat anodize and laser engraved T-marks.
The .223 Wylde 18” barrel is machined from 416R stainless steel with a bead blasted finish. It features a rifle length gas system and a 1:8 twist rate. The barrel also has an M4 feed ramp barrel extension and is magnetic particle inspected as well as high pressure tested. A standard A2 flash hider is included.
The Atlas R-One M-LOK free float handguard boasts a full length picatinny top rail and an extremely slim 1.3” inner diameter. This makes it the perfect platform for mounting your favorite optics and accessories.