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AR Upper Parts

Premium spare upper parts, upper part kits, and upper part assemblies needed for your next AR-15 | AR-10 | LR-308 or AR platform build.

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Rock Bluff Arsenal

Oops!!! Spare Parts Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $24.99
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Rock Bluff Arsenal

Pin & Detent Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $8.99
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Rock Bluff Arsenal

Spring Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $9.99
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Rock Bluff Arsenal

Upper Parts Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $32.99
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Rock Bluff Arsenal

Bolt Gas Ring

MSRP:

Was:

Now: $1.99 - $2.99
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Rock Bluff Arsenal

Ejection Port Cover Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $11.99
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Rock Bluff Arsenal

Gas Tube Roll Pin

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $1.99
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Rock Bluff Arsenal

Forward Assist Kit

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $20.99
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Rock Bluff Arsenal

Crush Washer

MSRP:

Was:

Now: $3.99 - $4.99
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Rock Bluff Arsenal

Ejection Port Cover

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $7.99
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Rock Bluff Arsenal

Ejection Port Cover Spring

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $1.99
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Rock Bluff Arsenal

Ejection Port Hinge Pin Snap Ring

MSRP:

Was:

Now: (Inc. Tax)

MSRP:

Was:

Now: $1.99