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Sig Sauer M400 Forge
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Sig Sauer

M400 Forge

$1,099.99
$999.99
Sale Price
Out of Stock
California DOJ roster CA DOJ Roster

This handgun is not listed as California compliant under the California handgun roster.

Sig Sauer M400 Forge Pistol, AR Style Pistol, Semi-automatic, 5.56 NATO, 11.5" Barrel, Matte Finish, Black, Magpul BSL Pistol Stabilizing Brace, Romeo-MSR GenII 2 MOA Red Dot, 30 Rounds, 1 Magazine PM400-556N-11B-FORGE

Key Details
Brand Sig Sauer
Manufacturer Part Number PM400-556N-11B-FORGE
UPC 798681744107
SKU SGPM400-556N-11B-FORGE
Current Stock 0 available
Quantity Updated May 7, 2026 8:10 AM
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Purchase Requirements
  • This product requires FFL processing before pickup or transfer.
  • Age verification is required before checkout completion.
  • California compliance or distributor restriction review may apply.
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

Trusted by military, police, and civilians for decades, SIG SAUER has earned a worldwide reputation for the unquestioned accuracy and unflinching reliability of its pistols and rifles. The M400 Forge Series features a cold hammer forged barrel, a ROMEO-MSR GEN II red dot, and a two-stage flat blade duty trigger.

Features
  • TriggerTech 3.5lb Two-Stage Flat Blade Duty Trigger
  • ROMEO-MSR Gen II with 2MOA Red Dot
  • Cold Hammer Forged Barrel
  • Ambidextrous Charging Handle
  • Aluminum Handguard
Specifications
UPC: 798681744107
Manufacturer: Sig Sauer
Manufacturer Part #: PM400-556N-11B-FORGE
Model: M400 Forge
Model (Alt): Pistol Length
Action: Semi-automatic
Barrel Length: 11.5"
Capacity: 30 Rounds
Finish: Matte
Grips: Polymer
Type: AR