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300 Blackout Uppers

All complete uppers must ship Signature Required, even if the Leave at Door option is selected.

CORE15 Rifle Systems

9.5” 416R 1:8 Stainless Steel Barrel (5/8x24 TPI) Pistol Length Gas System CORE15 Forged 7075-T6 M4 Flattop Upper with Internal Dry Lube...


CORE15 Rifle Systems

• CORE15 Forged 7075-T6 M4 Flattop Upper with Internal Dry Lube and Laser T-markings

• 16” 416R Stainless Steel Barrel Standard Profile 1:7 Black Oxided Finish (5/8x24 TPI)

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10.5” 4150 Nitride Barrel Pistol Length Gas System CORE15 Forged 7075-T6 M4 Flattop Upper with Internal Dry Lube and Laser T Marks...

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10.5” 4150 Nitride Barrel Pistol Length Gas System CORE15 Forged 7075-T6 M4 Flattop Upper with Internal Dry Lube and Laser T Marks...

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300 Blackout Roscoe Upper Specs: 10.5” 4150 Nitride Barrel Pistol Length Gas System CORE15 Forged 7075-T6 M4 Flattop Upper...

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CORE® 7075-T6 Forged Aluminum Upper w/ Dry Lube Coat CORE® 10" 1:7 Pistol Length 4150 Nitride Barrel CORE® 9" Free Float...

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