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Sig Sauer, Inc. M400 Tread Coil 5.56 Rome0 5 Red Dot - M400 Tread Coil 5.56 Romeo5 Red Dot
5.56 NATO13" barrelNFA Status: Verify with retailer
Short Barrel: Verify Classification
67/ 100

Outfitters Score™

Good

Sig Sauer, Inc. scores as a unrated build with fair pricing and a bare-bones configuration.

Our proprietary rating combines brand tier, price percentile within the caliber, feature completeness, barrel versatility, retailer availability, caliber practicality, and use-case fit.

Brand Quality12/25
Value16/20
Feature Completeness5/15
Barrel11/15
Availability8/10
Caliber10/10
Use Case Fit5/5
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Short Barrel: Verify Classification

This firearm has a barrel under 16 inches. It may be classified as an AR Pistol (with brace) or an SBR (with stock, NFA regulated). Check with the retailer to confirm classification before purchasing.

Description

The TREAD COIL sets a new standard in performance and value in the AR category. With installed accessories including ROMEO5 Red Dot Sight, Flat Blade Enhanced Trigger, and 13" lightweight handguard, the COIL is the perfect rifle package for the avid user or first-time buyer. Other features of the TREAD COIL include the precision 16" stainless barrel, ambidextrous controls, and 6-position Magpul SL Stock. Mfg: Sig Sauer, Inc.

Features

Ambidextrous|Ambi|Enhanced Trigger

Full Specifications

Overview

BrandSig Sauer, Inc.
ModelRM400-16B-TRD-C
SKU100041053
Rifle Typesemi auto
PlatformAR15
Caliber5.56 NATO
UPC798681632381

Barrel

Barrel Length13"
Barrel Finishstainless
Barrel Profilelightweight

Receiver

Forward AssistNo
Dust CoverNo

Handguard

Free FloatNo

Furniture

Stock Typecollapsible
Stock ModelMagpul Sl

Muzzle

Suppressor ReadyNo

Sights & Optics

Sights Includedred-dot
Optic ReadyNo

Compliance

CA CompliantNo
ClassificationShort Barrel: Verify Classification
NFA ItemVerify with retailer

What's Included (Complete Rifle)

This is a complete, ready-to-shoot firearm.

Upper Receiver

Lower Receiver

Barrel

13"

Bolt Carrier Group

Handguard

?

Stock / BraceVerify with retailer

Grip

Trigger

Muzzle Device

Charging Handle

Gas Block

Gas Tube

Buffer Tube

Iron Sights

Optic

Stock / Brace: Verify with retailer

We cannot confirm from available data whether this firearm includes a stock or brace. This distinction determines its legal classification.

Sig Sauer, Inc.

M400 Tread Coil 5.56 Rome0 5 Red Dot - M400 Tread Coil 5.56 Romeo5 Red Dot

RM400-16B-TRD-C

Starting at

$1299.99

Across 1 retailer

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