SIG SAUER M400-SDI X 5.56 NATO 11.5in 30rd Semi-Auto Pistol (PM400-SDI-11B-BLK)
Click to see full view
Ships to a dealer, not to you
This is a serialized firearm.
Sig Sauer
Overview
The SIG SAUER M400-SDI X 5.56 NATO 11.5in 30rd Semi-Auto Pistol (PM400-SDI-11B-BLK) is a complete rifle. Compare prices from multiple merchants and find the best deal.
Specifications
SIG SAUER M400-SDI X 5.56 NATO 11.5in 30rd Semi-Auto Pistol (PM400-SDI-11B-BLK)
Build history on GunPartPicker
Builders on GunPartPicker first added the SIG SAUER M400-SDI X 5.56 NATO 11.5in 30rd Semi-Auto Pistol (PM400-SDI-11B-BLK) to a build in April 2026.
It was in stock most days in August 2026, and today 3 of the 5 retailers we track have it in stock. Prices barely moved in August 2026, holding around $1,499.99, so there haven't been real sales lately. Buying today, the lowest price is $1,499.99 at Classic Firearms, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which complete rifle to pick?
Check it against the live catalog:
No reviews yet. Be the first to review this product!