New M400-SDI SENTRY

New M400-SDI SENTRY Features

The M400-SDI SENTRY is one of the most sought-after firearms available today.

A ready-to-go-solution combining the M400-SDI X platform, ROMEO5 GENII red dot, FOXTROT-MSR™ Full Size Light and vertical foregrip.
 

FOREVER
SIG SAUER® Infinite Guarantee™

Built to handle the demands of both professional and recreational shooters, the New M400-SDI SENTRY delivers consistent performance across a wide range of conditions. Whether you need a reliable home defense option or a precision sport shooting platform, this firearm delivers.

The New M400-SDI SENTRY ships new in box directly to your local FFL dealer. All applicable background check requirements apply at point of transfer.

New M400-SDI SENTRY Specifications

Buy New M400-SDI SENTRY Online — Reliable & Affordable

The New M400-SDI SENTRY is ideal for shooters looking to buy online with confidence. Precision-engineered and field-tested — a top-tier choice for home defense, sport shooting, or everyday carry.

Why Choose the New M400-SDI SENTRY?

✅ Quality guaranteed by top firearm manufacturers
✅ Ships fast across the USA
✅ Legal compliance and background-check ready
✅ 30-day return policy on unused items

Nationwide Delivery

We ship to all 50 states. Our store brings the best selection to your door, legally and securely through your local FFL dealer.

Shipping & Return Policy

📦 Fast shipping within 1–3 business days
🔁 30-day return policy for unused, unmodified items
💬 Questions? Contact our support team

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