SIG Sauer M400 SDI 5.56 11.5-Inch Pistol – Striking 5.56 NATO Handgun

Description

The SIG Sauer M400 SDI 5.56 11.5-Inch is a pistol chambered in 5.56 NATO with a 11.5-inch barrel and a 30+1 capacity. It carries the build quality SIG Sauer is known for and is ready for carry, home defense, or the range.

SIG Sauer M400 SDI 5.56 11.5-Inch Overview

The SIG M400 is SIG Sauer’s direct-impingement AR-15, built to mil-spec patterns so it works with the huge world of AR accessories. It features a forged upper and lower receiver, a free-floating M-LOK handguard, and the ergonomic upgrades SIG has refined over years of military and law enforcement contracts.

Carry and Use

The M400 is at home at the range, in a patrol car, or in the field. Its flat-top receiver accepts any optic, and the M-LOK handguard has space for lights, lasers, and grips.

Trigger and Controls

The M400 uses a standard AR-15 trigger group and familiar controls, including an ambidextrous safety selector on many models. The free-floating handguard keeps pressure off the barrel for consistent accuracy.

Sights and Optics

The factory sights give you a clear, fast sight picture for both precision shooting and quick defensive shots.

Caliber

The 5.56 NATO cartridge is light, flat shooting, and easy to control, and the rifle also handles .223 Remington ammunition. It is the standard round for AR-15 rifles, and ammunition is widely available.

Why SIG Sauer

SIG Sauer traces its roots back more than 150 years, and its pistols and rifles are carried by the U.S. military, federal agencies, and police departments across the country. That track record means proven designs, quality materials, and strong support for parts and accessories.

Factory Features

Here is how this model is configured from the factory:

• Black FNC Steel Threaded Barrel
• Black Anodized Picatinny Rail Alloy Steel Receiver
• M-LOK Handguard
• Magpul BSL Telescoping Pistol Stabilizing Brace
• AR Compatible Reduced Angle Grip
• Ambidextrous

In the Field

The SIG Sauer M400 SDI 5.56 11.5-Inch is ready for everyday carry, home defense, and range training. With 30 rounds on board, you have plenty of capacity. Pair it with a quality holster, spare magazines, and a light and it is ready to go.

Specifications

• Model: M400 SDI
• Caliber: 5.56 NATO
• Barrel Length: 11.5″
• Capacity: 30+1
• Manufacturer SKU: PM400SDI11BBLK
• Distributor Item: SS 169084
• UPC: 798681698967

Learn more about SIG Sauer firearms at SIG Sauer.

Care and Cleaning

Cleaning is straightforward. Unload the pistol, field-strip it according to the manual, clean the bore with a brush and patches, wipe carbon from the slide rails and breech face, and apply a light coat of quality gun oil to the contact points. Wipe the exterior with a lightly oiled cloth before storage.

Before You Buy

Federal law requires handgun purchases to go through a licensed dealer, and buyers must be 21 or older to purchase a handgun from a dealer. Some states and localities restrict magazine capacity and certain features, so check your local laws before you order. We ship to the FFL dealer of your choice, and your dealer handles the background check and transfer.

Who It Is For

The SIG Sauer M400 SDI 5.56 11.5-Inch is built for shooters who want a dependable, accurate handgun from one of the most respected names in the industry.

Buy the SIG Sauer M400 SDI 5.56 11.5-Inch at MAG5 Firearms

MAG5 Firearms is based in Collegeville, Pennsylvania, and ships to licensed dealers across the country. Order the SIG Sauer M400 SDI 5.56 11.5-Inch online, choose your FFL at checkout, and we will handle the rest. You can also browse our full selection of handguns. If you have questions about accessories, our team is happy to help.