California Proposition 65 Warning
This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.
Sporting Long Guns
Sig Sauer
M400
$1,649.99
Low Stock (5 left)
Sig Sauer M400 SDI XSERIES, Semi-automatic Rifle, AR, 223 Remington/5.56 NATO, 16" Carbon Steel Barrel, Anodized Finish, Black, Magpul SL Stock, SIG Flatblade Match Trigger Low Profile Gas Block With Mid-Length System, 30 Rounds, 1 Magazine RM400-SDI-16B-P
Key Details
UPC
798681664634
Part Number
RM400-SDI-16B-P
RSR Stock #
SGRM400-SDI-16B-P
Manufacturer
Sig Sauer
Already have an account from an in-store purchase? Log in and we will connect your online activity to it.
Continue Shopping
Live Distributor Check
Checking RSR live availability and restriction status...
Purchase Requirements
- This product requires FFL processing before pickup or transfer.
- Age verification is required before checkout completion.
- California compliance or distributor restriction review may apply.
- Final availability is confirmed against the distributor during cart and checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description
The M400 SDI X Series is the out of the box performance solution. The X Series features a 16" chrome molly barrel with a free-floating M-LOK handguard, SIG Flatblade Match Trigger, ambidextrous bolt catch and release, Magpul SL stock, and mid-length gas system.
Features
- Ambidextrous Bolt Catch and Release
- Low Profile Gas Block with Mid-Length System
- SIG Flatblade Match Trigger
- Hybrid Compensator/Flash Hider
- Magpul SL Stock
Specifications
UPC:
798681664634
Manufacturer:
Sig Sauer
Manufacturer Part #:
RM400-SDI-16B-P
Model:
M400
Model (Alt):
XSERIES
Action:
Semi-automatic
Barrel Length:
16"
Capacity:
30 Rounds
Finish:
Anodized
Grips:
Polymer
Type:
AR
