CORE15® M4 Upper


Part Number 100276
MSRP $569.99
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
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 CORE15® NO BS Lifetime Warranty
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