USED SIG Sauer M400 SDI X-Series 5.56 NATO Rifle – TANGO-MSR 1-10x26 FFP Scope, Magpul Bipod

The SIG Sauer M400 SDI X-Series is a premium 5.56 NATO rifle configured for versatile close- to intermediate-range use. Its 16-inch barrel, mid-length direct-impingement system, free-floating M-LOK handguard, ambidextrous controls, and flat trigger provide a refined platform for range shooting, training, and general-purpose applications. SIG lists the current 16-inch M400 SDI X with a 1:7 twist, adjustable Magpul stock, and SIG flash hider/compensator.

This rifle is equipped with a SIG Sauer TANGO-MSR 1-10x26 FFP illuminated scope in a cantilever mount. The first-focal-plane optic features an illuminated BDC-style reticle and a wide magnification range for fast target acquisition at low power and more precise shooting at distance. The package also includes a folding Magpul bipod, Magpul furniture in Flat Dark Earth, and the pictured polymer magazine. SIG describes the 1-10x26 FFP TANGO-MSR as using low-dispersion glass, an illuminated MSR BDC10 reticle, 11 brightness settings, and an integrated throw lever.

The rifle appears to be in very good preowned condition. Normal handling and operational wear is visible around the receiver, controls, handguard, and muzzle device

Specifications