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SIG Sauer m400 Sig ROMEO5 5.56 AR-15 Rifle RM40016BROSER5X210
- UPC
- 798681725229
- SIG Sauer SKU
- RM40016BROSER5X210
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Model details: SIG Sauer product page. The UPC and SKU above come from retailer listings (Primary Arms), checked 2026-10-22, not from SIG Sauer. Learn more about SIG Sauer.