Armory - OSA Parts & Accessories - AR15 Upper Receiver - OceanStateArmory

OSA Premium Upper Parts Kit

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Now: $125.00

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OSA Basic Upper Parts Kit

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Was:

Now: $25.00

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OSA15 AR15 Upper receiver (Thermal Fit)

MSRP:

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Now: $125.00

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OSA Premium Upper Parts Kit

OSA Premium Upper Parts Kit (UPK) The OSA Premium Upper Parts Kit includes the highest-quality components needed to complete your AR-15 upper receiver. Manufactured in the USA by Forward Controls Design (FCD), this kit replaces standard mil-spec...

MSRP:

Was:

Now: $125.00

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OSA Basic Upper Parts Kit

OSA Basic Upper Parts Kit The OSA Basic Upper Parts Kit includes the essential components needed to complete a standard AR-15 upper receiver. Made in the USA, this kit offers dependable mil-spec functionality with one small improvement that can make your...

MSRP:

Was:

Now: $25.00

Add to Cart
OSA15 AR15 Upper receiver (Thermal Fit)

OSA15 AR-15 Upper Receiver (Thermal Fit) The OSA15 Thermal Fit Upper Receiver is built for shooters who want the tightest possible receiver fit without relying on tension screws or oversized takedown pins. Machined from a 7075-T6 forged receiver...

MSRP:

Was:

Now: $125.00

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