Sig Sauer M400, SDI, 223 Remington/5.56 NATO, 16″ Cold Hammer Forged Steel Barrel, Cerakote Finish, Moss Green

Product Description

The Sig Sauer M400 SDI .223 rifle is a semi-automatic AR platform firearm engineered for sporting and recreational shooters who demand reliability and precision. Built on proven AR design principles, this rifle delivers accurate fire downrange with the precision and durability Sig Sauer is known for.

Additionally, the M400 SDI features a 16″ cold hammer forged steel barrel paired with a mid-length gas system. The low-profile gas block ensures smooth operation while minimizing recoil impulse. This configuration makes the rifle naturally balanced and easy to control, whether you’re at the range or in the field.

Trigger and Control Features

Furthermore, the M400 SDI comes equipped with Sig’s 2-Stage Matchlite Duo trigger, which breaks cleanly and predictably for consistent shot placement. The Magpul SL Stock provides a secure cheek weld and comfortable shooting position. These components work together to enhance accuracy and shooter control.

Caliber and Capacity

The Sig Sauer M400 SDI is chambered in .223 Remington/5.56 NATO, a versatile and widely available cartridge ideal for target shooting and sport competition. The rifle ships with one 30-round magazine, giving you ample capacity for extended range sessions.

Finish and Durability

Additionally, the Cerakote finish in moss green protects the steel components from corrosion and wear while offering a modern, tactical aesthetic. This durable coating ensures your rifle maintains its appearance and function through years of use. The M400 SDI is built to perform reliably in demanding conditions.

Available at Western Sport – Roanoke, TX

Western Sport is a licensed FFL/SOT dealer serving North Texas and the DFW area since 2007. Call 817-393-4000 to check availability or place an order for the Sig Sauer M400 SDI. Our expert staff can walk you through the features and answer any questions about this rifle.

Moreover, we handle all transfer paperwork and compliance requirements. Fast, professional service is our standard for every customer.

Why Buy from Western Sport?

• Licensed FFL/SOT dealer with 17+ years of experience serving North Texas.
• Expert staff knowledgeable about AR platform rifles and Sig Sauer firearms.
• Competitive pricing on quality firearms and accessories.
• Fast, professional transfer processing and after-sale support.
• Local service from a trusted DFW area dealer.

Frequently Asked Questions

Q: Is the Sig Sauer M400 SDI compatible with standard AR 5.56 NATO ammunition?

A: Yes. The M400 SDI is chambered in .223 Remington/5.56 NATO, so it fires both standard 5.56 NATO and .223 Remington ammunition. This dual compatibility makes it easy to find affordable ammunition at any gun shop or range.

Q: What warranty does Sig Sauer provide with the M400 SDI?

A: Sig Sauer rifles come with the manufacturer’s standard warranty covering defects in materials and workmanship. Western Sport can provide specific warranty details when you call to inquire about the rifle.

Q: What is the process for transferring a rifle in Texas through Western Sport?

A: As a licensed FFL dealer, we handle all federal and state paperwork required for your transfer. Simply contact us at 817-393-4000 to place an order, and our staff will guide you through the straightforward Texas transfer process.

Q: What is the best use case for the Sig Sauer M400 SDI?

A: The M400 SDI is ideal for sporting use, target practice, and recreational shooting. Its 16″ barrel and reliable gas system make it a versatile choice for range work or sport competition.

Additional information