Features a direct impingement gas operating system, common to the traditional AR platform, with a rotating locking bolt. Extended charging handle. Ambidextrous controls. Integral ambidextrous QD sling mounts. Enhanced SIG Trigger. Micro gas block. Sig Sauer foregrip. Sig M-LOK Handguard. Six-position Mil-Spec stock. Polymer 30-round magazine.
| Manufacturer | Sig Sauer
|
| Model | RM400-16B-E-R
|
| UPC | 798681573226
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| Caliber | 223 Rem
|
| Stock | 0
|
| State restrictions | CA CO CT DC DE HI IL MA MD NJ NY OR WA
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| Availability | Out of stock |