Sig Sauer M400 Rose 556 Nato 16" Barrel W/ Romeo5 Gen II RM400-16B-ROSE-R5X2
UPC: 798681716593 MPN: RM400-16B-ROSE-R5X2 SKU: 86094105

Sig Sauer M400, Sig Rm40016broser5x2 M400 556 16 Romeo 30r Rs/ 223 Rem | 5.56 Nato Firearm (30-Round)

Quick Specs

Caliber 223 Rem | 5.56 NATO,5.56 NATO,223 Rem/5.56 Nato
Capacity 30+1

Insight Snapshot

Gunprime lists this offer at $1,299.99, 18% under MSRP.

  • Sig Sauer M400 Rose 556 Nato 16" Barrel W/ Romeo5 Gen II RM400-16B-ROSE-R5X2 anchors the Firearms segment in the firearms catalog, giving shoppers a clear baseline before purchase.
  • Chambered in 223 Rem | 5.56 NATO, it keeps ballistics predictable across practice and defensive loads without forcing you to rework your kit.
  • Factory materials note a semi-auto action, which influences recoil timing and maintenance cadence.
  • Standard capacity lands at 30+1, so plan your range loadout around how often you expect to top off.

Shopping Tips

  • The featured offer reflects a 18% savings versus MSRP; use that benchmark when negotiating.
  • Line up your receiving FFL early and clarify their transfer fees so you are not surprised at pickup.

Ownership Checklist

  • Confirm the receiving FFL is ready for the transfer and understands the model you are purchasing.
  • Review Chagrin Falls, Ohio requirements on storage, transport, and waiting periods before the firearm arrives.
  • Source 223 Rem | 5.56 NATO practice ammunition early; popular loads tighten in supply when prices drop.

Common Questions

What specs should I know before buying Sig Sauer M400, Sig Rm40016broser5x2 M400 556 16 Romeo 30r Rs/ 223 Rem | 5.56 Nato Firearm (30-Round)?

Key callouts include caliber: 223 Rem | 5.56 NATO, action: Semi-Auto, capacity: 30+1. Scroll up for the full specification table before you commit.

Sig Sauer headlines the specification sheet for this platform. Factory literature categorizes it as a modern sporting rifle, which frames expectations for handling and use. Factory chambered in 223 Rem | 5.56 NATO, built around a semi-auto action with a 30+1 round capacity to keep performance predictable from shot to shot. Dimensional notes call out a barrel length of 16" in and overall length measuring 33.25' - 36.50" in, helping you plan cases and storage. Unloaded weight settles near 7 lbs, which influences recoil management and carry options. Furniture is trimmed in synthetic with a black finish, giving the rifle its classic profile. Metalwork wears a anodized treatment, pairing durability with period-correct styling. Stock appointments include smooth furniture without checkering and a traditional butt plate. Magazine system uses a detachable design, making reloads faster between strings. Without a hinged floorplate you will cycle rounds out manually when clearing the rifle. Select retailers indicate this model qualifies for direct ship where local regulation allows.