Product Overview
- Semi-automatic AR-15 platform rifle chambered in 5.56 NATO from the Sig Sauer M400 SDI series.
- Full suite of ambidextrous controls, 2-Stage Matchlite Duo trigger, and a free-floating M-LOK handguard; 16" Chrome-Moly barrel threaded 1/2x28 with a 1:7" twist.
- Includes a SIG Flash Hider-Compensator and 6-position Magpul SL stock.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The Sig Sauer M400 SDI in 5.56 NATO is a semi-automatic AR-15 style rifle with a 16" Chrome-Moly barrel and a 1:7" twist rate. It weighs 7 lbs and features a 7075 T-6 aluminum receiver finished in Flat Dark Earth Cerakote. The mid-length direct impingement operating system is paired with a free-floating M-LOK handguard, ambidextrous controls, and a 2-Stage Matchlite Duo trigger.
Key Features
- 16" Chrome-Moly barrel, threaded 1/2x28, with a 1:7" twist and SIG Flash Hider-Compensator.
- Mid-length direct impingement gas system for a measured recoil impulse.
- 2-Stage Matchlite Duo trigger for a defined take-up and break.
- Fully ambidextrous controls: safety, charging handle, bolt catch, and magazine release.
- Free-floating M-LOK handguard for accessory mounting without affecting barrel harmonics.
- 7075 T-6 aluminum receivers finished in Flat Dark Earth Cerakote.
- 6-position Magpul SL stock for adjustable length of pull.
FFL & Compliance
This firearm must ship to a Federal Firearms Licensed (FFL) dealer. Buyers are responsible for understanding and complying with all applicable local, state, and federal laws. Magnum Ballistics does not provide legal advice or determine purchase eligibility. We ship only to the FFL selected during checkout.
