Sig Sauer M400 SDI X 5.56 NATO 11.5in 30rd Brace – Black

SKU: LIP|SIPM400SDI11BLK
SKU: LIP|SIPM400SDI11BLK Category: Tags: , Brand:

$1,699.99

8 in stock

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The Sig Sauer M400 SDI X is an AR-style pistol chambered for 5.56 NATO with an 11.5-inch barrel. It includes fully ambidextrous controls, a free-floating M-LOK handguard, and a Magpul BSL telescoping stabilizing brace. The design pairs a 2-stage flat blade match trigger with a 30-round removable magazine for sustained range use and training.

Key Specifications

  • The caliber is 5.56 NATO / .223 Rem.
  • The barrel measures 11.5 inches.
  • The barrel is made from chrome moly steel.
  • The barrel finish is Black FNC.
  • The barrel has a 1:7 inch rate of twist.
  • The pistol ships with a 30-round removable magazine.
  • The action is semi-automatic.
  • The trigger is a 2-stage flat blade match.
  • The handguard is a free-floating M-LOK design.
  • The pistol includes a Magpul BSL telescoping brace.

Engineered for instruction, range work, and practical shooting, the M400 SDI X balances control and modularity without unnecessary complexity. Its ambidextrous controls, rigid handguard and match-style trigger support consistent performance and easy accessory integration, making it a straightforward choice for experienced shooters seeking a capable AR-style pistol platform.

Additional information

upc

798681698967

Manufacturer

SIG SAUER

Manufacturer Part Number

798681698967

Action

Semi-Auto

ATF Type

MODERN SPORTING RIFLE

Barrel Finish

Black FNC

Barrel Length

11.5"

Caliber/Gauge

.223 REM/5.56 NATO

Capacity

30

color

Black

Length

30.2''

Magazine Included

1 x 30-Round

model

M400

Number of Magazines

1 30 rd. Magazine

Package Height

4.2

Package Width

11.3

Product Type

AR

Rate of Twist

1:7"

Safety

Thumb

Shipping Weight

9.55

Sights

Optic Ready

State Restriction (CA)

NO DIRECT SHIP TO CALIFORNIA

State Restriction (RI)

NO DIRECT SHIP TO RHODE ISLAND

State Restriction (WA)

NO DIRECT SHIP TO WASHINGTON

thread pattern

1/2"x28 tpi

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