Sig Sauer M400 SDI 5.56 NATO Semi-Auto Rifle Black 11" SBR - RM400-SDI-11B-SBR-B

This is an NFA-regulated short barrel rifle chambered in 5.56 NATO/.223 Rem with an 11" barrel and 1-in-7 twist rate. It features a lightweight aluminum frame with M-LOK handguard, optic-ready sights, telescoping stock, and comes with one 30-round magazine. Overall length ranges from 28.2" to 30.1" with a total weight of 5.8 lbs.