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Sig Sauer Sig M400 SWAT 5.56 NATO rifle. AR-15 platform with a 16" chrome-lined, phosphate-coated barrel and a 7075-T6 aluminum forged lower receiver. Direct impingement gas system.
Specifications
- Manufacturer:
- Sig Sauer
- Category:
- lower-receiver
- UPC:
- 798681432677
- MPN:
- RM400-16B-S
- Required Component:
- Yes
- Complete Firearm:
- No
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