| Caliber | Chambered in 5.56x45mm NATO |
| Upper Receiver | CORE15® Mil-Spec Forged 7075-T6 M4 Upper Receiver |
| Bolt Carrier Group | Chrome lined 8620 Steel Bolt Carrier and Bolt Carrier Key |
| Bolt Assembly | Magnetic Particle Inspected (MPI) Carpenter 158® Bolt Assembly |
| Charging Handle | CORE15® Hardcore Charging Handle V.1 |
Operation
| Direct Gas Impingement Gas System |
Gas Tube
| Gas tube made of 304 grade Stainless Steel |
| Barrel/Rifling | Dedicated 16” 4140 Nitride Coated .22 Long Rifle 1:16 Twist Bar rel |
| Flash Hider | A-2 Flash Hider |
| Forearm | M4 Style Thermoset molded Polymer Hand Guards with Dual Heat Shields |
| Sight /Base | A Frame Front Sight Base (Forged) |
| Owner’s Manual | CORE15® Owner’s Manual |
Warranty
Mfg # | CORE15® NO BS Lifetime Warranty
100276
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