BFSIII BUILT LOWER RECEIVER
| Finish | Matte Black |
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| Caliber | 223 Rem | 5.56 NATO |
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| Magazine | 1 30 rd. Aluminum BFI |
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| Receiver | 7075 Forged XM15-E2S |
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| Stock Frame Grips | Collapsible / Folding Stock M4 Stock/A2 pistol Grip |
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| Additional Feature 1 | BFSIII Binary Trigger |
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Determined at checkout.
