SIG SAUER M400 PRO 16"
SIG SAUER M400 PRO 16" 5.56 NATO Rifle
The SIG SAUER M400 PRO 16" is a semi-automatic 5.56 NATO rifle built around SIG SAUER's M400 platform. This configuration features a 16-inch barrel, aluminum M-LOK handguard, folding sights and adjustable stock, providing a versatile full-length M400 PRO configuration for sporting, professional and duty applications.
The SIG SAUER M400 PRO, manufacturer part number WRM400-556N-16B-PRO, combines the proven M400 platform with a versatile 16-inch barrel configuration. Chambered in 5.56 NATO, the M400 PRO offers modern AR-platform ergonomics with SIG SAUER manufacturing and factory components.
The 16-inch configuration provides customers looking at the M400 PRO platform with a traditional rifle-length alternative to SIG's shorter SBR configurations.
A lightweight aluminum M-LOK handguard surrounds the barrel and provides multiple mounting positions for compatible accessories. The continuous upper rail provides additional space for compatible sights and optics.
Factory folding sights give the M400 PRO a ready-to-use sighting system while allowing them to be folded when using compatible optics.
An adjustable stock allows the rifle's length of pull to be configured for different users. The familiar AR-style controls, pistol grip and magazine interface make the M400 PRO straightforward for users already familiar with the platform.
Key Features
- SIG SAUER M400 PRO platform
- 5.56 NATO
- 16" barrel configuration
- Semi-automatic operation
- Aluminum M-LOK handguard
- Full-length upper accessory rail
- Folding sights
- Adjustable stock
- Black finish
- AR-style controls and ergonomics
- Manufacturer SKU: WRM400-556N-16B-PRO
OFF-DUTY is available to the qualified individuals listed below, with approved purchaser ID
• Active-Duty Military with an Active-Duty Identification
• Retired Military with Retired Military Credentials
• Honorably Discharged Veterans (requires DD214 or Veteran designation on state-issued ID)
• Active Reservists with Military Identification
• Active National Guard with Military Identification
• Corrections Officer (including parole and probation officers)
• Sworn Law Enforcement Officers (including federal, state, and county)
• Retired Law Enforcement Officers with “Retired” Credentials
• Active or Retired Law Enforcement with Official Agency Credentials
• Court Officers with Official Agency Credentials or Official Documentation
• State / County / City Coroners with Official Agency Credentials or Official Documentation
• Full Time First Responders with Current Credentials or Official Documentation
• EMT’s, Firefighters, Volunteer Firefighters, and Paramedics
• State-Licensed Security Professionals
| Model | M400 Pro |
| Type | Rifle |
| Caliber | 5.56 |
| Manufacturer | Sig Sauer |
| Brand | SIG SAUER |