Product Features & Specifications

Sig Sauer RM400SDI16BMSGRN M400 SDI-X 5.56 NATO 30+1 16" Black Threaded Barrel, Moss Green Cerakote Picatinny Rail Aluminum Receiver, M-LOK Handguard, 6 Position Magpul SL Black Synthetic Stock, Reduced Angle Grip, Ambidextrous

The M400-SDI X was designed to meet the highest standards of performance and reliability. From the rifle's full suite of ambidextrous controls to its proven mid-length gas system.

Features fully Ambi Controls- safety, charging handle, bolt Catch & mag release; 2-Stage Matchlite Duo trigger; free floating M-LOK; mid-length direct impingement operating system and 6 position Magpul SL stock.

Brand	Sig Sauer
Series	SDI-X
Model	M400
Caliber	5.56 NATO
Barrel Length Range	16" to 16.99"
Gun Platform	AR-Style
Operating System	Direct Impingement
Stock Finish Group	Black
Capacity	30+1
Stock Material	Synthetic
Action	Semi-Auto
OAL	33.25' - 36.50"
Hand	Ambidextrous
Sights	None
Barrel Finish	Black
Barrel Material	Chrome Moly Steel
Muzzle	Sig Flash Hider-Compensator
Twist	1:7"
Receiver Description	Picatinny Rail
Magazine Type	AR-15
Grips	Reduced Angle
Handguards	M-LOK
Height	7.10"
Receiver Material	Aluminum
Safety	Lever
Thread Pattern	1 / 2"x28
Width	2.80"
Stock Description	6 Position Magpul SL
Barrel Description	Threaded
Barrel Length	16"
Max Capacity	30
Receiver Finish	Moss Green Cerakote
Trigger	Sig Two-Stage Matchlite Duo
Weight	7 lbs
Stock Finish	Black
Handguard Finish	Moss Green
SKU	176238
UPC	798681701216
MPN	RM400SDI16BMSGRN