SIG SAUER M400 TREAD V2 Semi-Auto Pistol PM40011BTRDV2 — Description

The SIG SAUER M400 TREAD V2 PM40011BTRDV2 is a compact 5.56 NATO semi-automatic pistol built on SIG Sauer’s proven M400 direct-impingement AR-style platform. Designed for maneuverability and performance, this configuration features an 11.5-inch cold hammer-forged barrel, Magpul BSL stabilizing brace, free-floating M-LOK handguard, and upgraded controls for enhanced handling.

The TREAD V2 incorporates several improvements over earlier M400 TREAD models, including a SIG Matchlite 2-stage trigger, enhanced free-floating M-LOK handguard, and ambidextrous controls. The mid-length/carbine-style operating system and lightweight design provide a balanced platform for range use, training, and general-purpose applications.

Chambered in 5.56 NATO (.223 Remington compatible), the M400 TREAD V2 pistol uses standard AR-pattern magazines and includes a 30-round magazine in this configuration. Its optics-ready upper receiver and accessory-compatible handguard allow users to configure the platform with a wide range of optics and M-LOK accessories.

SIG SAUER M400 TREAD V2 PM40011BTRDV2 — Specifications

Manufacturer: SIG SAUER
Model: M400 TREAD V2 Pistol
Model Number: PM40011BTRDV2
Caliber: 5.56 NATO (.223 Remington compatible)
Action: Semi-automatic
Operating System: Direct impingement gas system
Platform: AR-15 style pistol platform
Barrel Length: 11.5 inches
Barrel Material: Cold hammer-forged steel
Barrel Twist Rate: 1:7″
Receiver Material: Aluminum
Finish: Black hard-coat anodized finish
Brace: Magpul BSL stabilizing brace
Handguard: Free-floating M-LOK enhanced handguard
Trigger: SIG Matchlite 2-stage trigger
Magazine Type: AR-15 / STANAG compatible detachable magazine
Magazine Capacity: 30 rounds
Controls: Ambidextrous safety and enhanced controls
Muzzle Thread: 1/2×28 TPI
Sights: Optics-ready Picatinny rail
Overall Length: Approx. 30.1 inches
Weight: Approx. 6.8–7.0 lbs (configuration dependent)

Key Features

• 5.56 NATO chambering with .223 Remington compatibility
• 11.5-inch cold hammer-forged barrel
• SIG Matchlite 2-stage flat-blade trigger
• Magpul BSL stabilizing brace
• Free-floating M-LOK handguard for accessory mounting
• Ambidextrous safety controls
• Optics-ready upper receiver
• AR-15 magazine compatibility
• 30-round magazine included
• Compact pistol configuration for maneuverability
• SIG M400 reliability and modularity

Package typically includes:

• SIG SAUER M400 TREAD V2 5.56 NATO pistol
• Magpul BSL brace
• 30-round magazine
• Owner’s manual
• Safety documentation