The M400-SDI X Pistol has been developed with the input from the professional instructors at SIG SAUER Academy. Building upon their decades of experience and countless hours of instruction, we have developed the M400-SDI X Pistol to meet the highest standards of performance and reliability.
With fully ambidextrous controls including a bolt catch/and release unique to the M400-SDI lower receiver, the M400-SDI X Pistol delivers advanced performance for both left & right-handed shooters and makes transitional shooting easier than ever.
The free-floating handguard utilizes a new steel lockup design that significantly reduces handguard deflection by providing maximum rigidity and allows for accessories to be attached on all four sides with no effect on accuracy.
The 2-Stage Matchlite Duo trigger provides an out-of-the-box crisp 4.5 - 6.5lb pull weight with a flat blade design for a precision feel. The M400-SDI X Pistol utilizes the highest quality performance coatings to ensure maximum durability and reliability.
M400-SDI X PISTOL FEATURES INCLUDE:
- Fully Ambidextrous Controls (bolt catch/release, safety selector, charging handle, mag catch)
- Low-Profile Gas Block with Carbine Length Gas System
- SIG 2-Stage Matchlite Duo Trigger
- 11.5” Cold Hammer Forged Steel Barrel
- Free-Floating M-LOK/Picatinny Alloy Handguard
- Compensator/Flash Hider
- Magpul BSL Telescoping Pistol Stabilizing Brace

| Product Specs | |
| Action | Semi Auto |
| Barrel Length | 11.5" |
| Capacity | MULTI |
| Color | Hard Coat Anodized |
| Finish | Hard Coat Anodized |
| Front Sight | N/A |
| Gas System | Direct Impingement (DI) |
| Overall Length Collapsed | 28.2 in |
| Overall Length Extended | 30.1 in [765 mm] |
| Rear Sight | N/A |
| Rifle Lower | Billet Steel |
| Rifle Upper | Billet Steel |
| Special Purpose | SBR |
| Weight | 5.8 lb [2.6 kg] |
Sig Sauer
Talos Defense Systems official Distributor in Greece for SIG SAUER, SIG headquartered in Newington, New Hampshire, is an ISO 9001 certified company employing over 3,000 people. It is the largest member of a global business group of firearms manufacturers that includes J.P. Sauer & Sohn and Blaser, GmbH. in Germany.
This global network of companies provides SIG SAUER with a world-class knowledge base for firearms, unparalleled expertise in design, and extensive production capacity, enabling it to respond quickly and effectively to changing market conditions and the needs of military, law enforcement, and commercial markets worldwide.