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Odin Works Complete AR-15 Upper, 6.5mm Grendel, 15.50″ K-Mod, 18″ Barrel

6.5 Grendel Complete AR-15 Upper Receivers

These complete 6.5mm Grendel AR-15 upper receivers for sale on Locked Back are ready to go for any mil-spec AR-15.

Converting a standard AR-15 to shoot 6.5mm Grendel is easy – it can be done in seconds without tools by swapping out a complete upper receiver on a mil-spec lower receiver. Since 6.5mm Grendel is designed to feed through standard AR-15 magazines, swapping out the upper receiver is the only needed step to change calibers.

6.5mm Grendel is an effective 200–800 yard cartridge, capable of firing a larger bullet farther than standard .223/5.56 cartridges. Factory 90 to 129 grain 6.5mm Grendel rounds are very capable for hunting and self-defense applications, providing greater range and a heavier bullet.

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