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Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16″ Black FNC Chrome Moly Steel Barrel, Black Anodized Aluminum Receiver, 15″ M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip

Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16″ Black FNC Chrome Moly Steel Barrel, Black Anodized Aluminum Receiver, 15″ M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip

$1,499.99

Out of stock

This item is not currently stocked but may be available by special order. Please allow an additional 1–2 weeks for processing; we will contact you once availability is confirmed.

Disclaimer: It is the customer’s responsibility to ensure that all orders comply with applicable local and federal regulations. Non-compliant orders are subject to a 30% restocking fee. We reserve the right to dispute any chargebacks related to such orders.

Guidelines for Shipping Restrictions by State

The M400 X-series features a free-floating M-LOK handguard, Magpul SL-K 6-position telescoping stock, Sig Flat Match Grade trigger, 16″ Chrome Moly barrel, and a 7075 T-6 aluminum receiver with a black hardcoat anodized finish.

Your Trusted Online Firearms Store – Shop with Confidence!

Looking for the best prices on Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16″ Black FNC Chrome Moly Steel Barrel, Black Anodized Aluminum Receiver, 15″ M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip by Sig Sauer? ADA Armaments LLC proudly serves Boise with unbeatable pricing, expert service, and exclusive rewards.

Best Prices in Boise.
Earn Rewards on Every Purchase.
Special Bundles & Firearm Packages Available.
Safe & Secure Checkout – Shop with confidence using trusted payment options.
Compliance-Ready – All sales follow federal, state, and local firearm laws.

No shipping to California.

Limited Stock – Visit Us Today or Shop Online Before They’re Gone! 

UPC

798681664634

Manufacturer

Manufacturer Part Number

RM400-SDI-16B-P

Action

Semi-Auto

ATF Type

MODERN SPORTING RIFLE

Barrel Finish

Black FNC

Barrel Length

16

Caliber/Gauge

.223 REM/5.56 NATO

Capacity

30

Length

46.1000

Magazine Included

1 x 30-Round

Model

M400

Number of Magazines

1 30 rd.

Package Height

4.3

Package Width

11.3

Product Type

AR

Rate of Twist

1:7"

Safety

AMBI SAFETY CONTROL

Shipping Weight

10.0

Sights

No

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"-28 tpi

Units per Box

1

SKU: ZND|GRM400SDI16BPCategories: AR RiflesTags: Online Only

The M400 X-series features a free-floating M-LOK handguard, Magpul SL-K 6-position telescoping stock, Sig Flat Match Grade trigger, 16″ Chrome Moly barrel, and a 7075 T-6 aluminum receiver with a black hardcoat anodized finish.

Your Trusted Online Firearms Store – Shop with Confidence!

Looking for the best prices on Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16″ Black FNC Chrome Moly Steel Barrel, Black Anodized Aluminum Receiver, 15″ M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip by Sig Sauer? ADA Armaments LLC proudly serves Boise with unbeatable pricing, expert service, and exclusive rewards.

Best Prices in Boise.
Earn Rewards on Every Purchase.
Special Bundles & Firearm Packages Available.
Safe & Secure Checkout – Shop with confidence using trusted payment options.
Compliance-Ready – All sales follow federal, state, and local firearm laws.

No shipping to California.

Limited Stock – Visit Us Today or Shop Online Before They’re Gone! 

UPC

798681664634

Manufacturer

Manufacturer Part Number

RM400-SDI-16B-P

Action

Semi-Auto

ATF Type

MODERN SPORTING RIFLE

Barrel Finish

Black FNC

Barrel Length

16

Caliber/Gauge

.223 REM/5.56 NATO

Capacity

30

Length

46.1000

Magazine Included

1 x 30-Round

Model

M400

Number of Magazines

1 30 rd.

Package Height

4.3

Package Width

11.3

Product Type

AR

Rate of Twist

1:7"

Safety

AMBI SAFETY CONTROL

Shipping Weight

10.0

Sights

No

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"-28 tpi

Units per Box

1

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