SIG SAUER MPX Competition Carbine Rifle WRMPX-16B-9-35 — Description

The SIG SAUER MPX Competition Carbine WRMPX-16B-9-35 is a premium 9mm semi-automatic pistol-caliber carbine (PCC) designed specifically for competitive shooting and high-performance range use. Built on the SIG MPX modular platform, the Competition Carbine combines the reliability of a short-stroke gas piston system with enhanced ergonomics, a precision barrel, and competition-focused features.

The MPX Competition Carbine features a 16-inch barrel, a lightweight aluminum M-LOK handguard, and a collapsible/folding stock system for improved portability and customization. The closed-bolt piston-driven design provides smooth cycling, reduced fouling, and consistent performance across a wide range of 9mm ammunition.

Designed for practical shooting competitions and advanced range applications, the MPX Competition model includes a 35-round magazine, ambidextrous controls, AR-style ergonomics, and a modular design that allows users to configure the platform to their preferences.

SIG SAUER MPX Competition Carbine WRMPX-16B-9-35 — Specifications

Manufacturer: SIG SAUER
Model: MPX Competition Carbine
Model Number: WRMPX-16B-9-35
Caliber: 9mm Luger (9×19mm)
Action: Semi-automatic
Operating System: Closed-bolt, short-stroke gas piston system
Platform: SIG MPX modular carbine
Barrel Length: 16 inches
Barrel Material: Hammer-forged steel
Barrel Finish: Nitron finish
Twist Rate: 1:10″
Receiver Material: Aluminum
Receiver Finish: Black hard-coat anodized finish
Handguard: Aluminum M-LOK free-floating handguard
Stock: Collapsible/folding stock
Magazine Type: SIG MPX detachable magazine
Magazine Capacity: 35 rounds
Trigger: Match-style trigger system (configuration dependent)
Controls: Ambidextrous safety, magazine release, charging handle, and bolt controls
Overall Length: Approx. 28.5–33 inches (stock collapsed/extended)
Weight: Approx. 7.2 lbs with magazine
Sights: Optics-ready with full-length top rail

Key Features

• 9mm pistol-caliber carbine design optimized for competition and range shooting
• 16-inch barrel for improved velocity and accuracy
• Short-stroke gas piston operating system for reliable cycling and cleaner operation
• Closed-bolt action for improved consistency and precision
• 35-round magazine capacity
• Free-floating M-LOK handguard for accessory mounting
• Collapsible/folding stock for compact storage and transport
• Fully ambidextrous controls for left- or right-handed operation
• AR-style manual controls and ergonomics
• Modular MPX platform with configurable components

Package typically includes:

• SIG SAUER MPX Competition Carbine 9mm rifle
• 35-round magazine
• Folding/collapsible stock assembly
• Owner’s manual
• Safety documentation