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AR-15 FDE Upper Assembly - 16in / 300 Blackout / 1:8 / 12in TGB M-LOK FDE AR-15 Handguard Choices
300 Blackout Chrome-Moly AR-15 Upper Assemblies in FDE
These AR-15 300 Blackout Chrome-Moly AR-15 in FDE "Flat Dark Earth" upper assemblies are made from the highest quality materials and with the exception of the imported hand guard... every other part is Made in the USA!
These uppers are not just assembled in Texas, several of the parts are made right here in Texas and Texas Gun Builders runs our own Cerakote operation.
So with the high-quality materials, meticulous workmanship & incredible pricing you can't go wrong.
We use Anderson Manufacturing flat top M4 Mil-Spec upper receivers, forged and then CNC Machined from 7075-T6 Aluminum, providing you with the hardest and most durable material of any upper receiver!
This 16” 300 Blackout barrel is made from 4150 Gun Quality Steel, Heat Treated to RC 28-32 Hardness, and Stress Relieved! The barrel is incredibly accurate and durable.
These uppers have a 1:8 twist rate, US Made carbine gas system (Not usually found on uppers in this price range), M-LOK Hand Guard with free rail inserts, so your attachment position options are endless!
The hand guard is a 12in TGB M-LOK made from Aircraft Aluminum, hard coat anodized to improve strength and designed for shooters that want the versatility of picatinny inserts with no additional costs!
The gun builders at Texas Gun Builders have over 40 years combined experience, led by an ex-Army Armorer. Our uppers are torqued to military specs & quality checked continuously.