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SIG Sauer M400 SDI X-Series 5.56 NATO 16" 30-Round Rifle Moss Green
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1 Magazine
Ambidextrous Bolt Catch and Release
Hybrid Compensator/Flash Hider
Low Profile Gas Block with Mid-Length System
Magpul SL Stock
Moss Green Cerakote Finish
SIG 2-Stage Matchlite Duo Trigger
Specifications
Caliber
Brand
Model
Series
SDI-X
MPN
RM400-SDI-16B-MSGRN
UPC
798681701216
MSRP
$1,749.99
Action
Semi-Auto
Barrel Length
16"
Capacity
30 Rounds
Description
The SIG Sauer M400 SDI X-Series is a semi-automatic AR-15 rifle chambered in .223 Remington and 5.56x45mm NATO, built for range shooting, tactical use and general AR platform work. It has a flat-top upper receiver with a Picatinny rail for mounting any optic, and a 16-inch barrel with a 1:7 twist rate and 1/2x28 threading. A Sig flash hider compensator is fitted to the muzzle.
The rifle uses an aluminum M-LOK handguard for accessory mounting and a Sig 2-Stage Matchlite Duo trigger. It has a 6-position Magpul MOE-SL stock, ambidextrous controls, and a Moss Green Cerakote finish. It weighs 7 pounds and measures 36.5 inches overall. One 30-round polymer magazine is included.
- Action: Semi-Auto
- Caliber: .223 Remington / 5.56x45mm NATO
- Barrel Length: 16 inches
- Twist Rate: 1:7
- Thread Pattern: 1/2x28
- Capacity: 30 rounds
- Weight: 7 lbs
- Overall Length: 36.5 inches
