AR15 Parts for Sale

AR-15 parts include all components specific to the AR-15 platform, from trigger groups and buffer tubes to handguards, charging handles, and small parts. Browse AR-15 part listings from all listed brands.

AR15 Parts Auctions

2 active auctions ending soon

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Geissele Automatics MK4 10" Handguard AR15 Mark 4 MK IV

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CMMG 22 LR Conversion BCG AR15 Parts 22LR Bolt Carrier Group Kit AR-15

Recently Sold

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Sold On 07/10/2026

Geissele Automatics MK4 10" AR15 Parts Mark 4 MK IV

Geissele Automatics MK4 10" Mark IV

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Sold On 07/10/2026

Geissele Automatics MK4 10" Handguard AR15 Parts Mark 4 Mark4 MK

Geissele Automatics MK4 10" Handguard Mark Four

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Sold On 05/04/2026

Black Rain Ordnance, Inc. SPEC15 Stripped Upper and Lower Receiver SPEC-15

Black Rain Ordnance SPEC15 Spec-15 BRO AR15 AR

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Sold On 03/23/2026

KAK Industries K-Spec Enhanced Bolt-Carrier-Group C158 BCG 5.56 AR-15 AR15

KAK Industries KSpec Enhanced BCG 556 AR-15 AR15

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Sold On 12/12/2025

CMMG 22LR AR-15 Conversion Kit Bravo, No magazine

CMMG AR15 Conversion Kit AR-22-LR

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Sold On 06/28/2024

NEW Franklin Armory BFSIII AR-S1 Binary Firing Systems Binary Trigger AR15

Franklin Armory BFSIII AR-S1 Binary Trigger AR-15

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Sold On 06/14/2024

RARE Bootleg Inc. Four Position Adjustable Carrier Full Auto Capable BCG

Bootleg Inc. Four Position Adjustable Carrier BCG

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Sold On 05/24/2024

Aero Precision .308 / 7.62 BCG Bolt Carrier Group 7.62 NATO Black Nitride

Aero Precision .308/7.62 BCG Bolt Carrier Group