This is a first-generation Sig Sauer MPX configured with an 8-inch cold hammer forged barrel, chambered in 9mm. The Gen 1 platform uses a short-stroke gas piston system with a rotating bolt and is built around a two-piece upper assembly, featuring a forged receiver and a removable aluminum handguard. This unit includes a Timney single-stage trigger, installed in place of the factory fire control group to improve trigger pull consistency and reset.

A 3-prong ASR flash hider is mounted at the muzzle, compatible with suppressors that use the SilencerCo ASR mounting system. The brace is the OEM collapsing version, mounted to the Picatinny rear interface and adjustable for multiple length settings. Included with the firearm are fifteen OEM 30-round magazines and the factory hard case.

Specifications:

• Caliber: 9mm

• Barrel Length: 8 inches

• Trigger: Timney single-stage

• Muzzle Device: 3-prong ASR flash hider

• Action: Semi-automatic, short-stroke gas piston

• Magazine Capacity: (15) 30-round OEM magazines

• Brace: Factory collapsing brace

• Case: OEM hard case included

• Optics Mount: Full-length M1913 Picatinny top rail

• Handguard: Free-floating aluminum

• Charging System: Side charging, non-reciprocating