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Sig Sauer M400 SDI XSERIES, Semi-automatic Rifle, 223 Remington/5.56 NATO, 16″ Carbon Steel Barrel, Black
Home » Shop » Sig Sauer M400 SDI XSERIES, Semi-automatic Rifle, 223 Remington/5.56 NATO, 16″ Carbon Steel Barrel, Black
Home » Shop » Sig Sauer M400 SDI XSERIES, Semi-automatic Rifle, 223 Remington/5.56 NATO, 16″ Carbon Steel Barrel, Black
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$1,649.99Original price was: $1,649.99.$1,499.99Current price is: $1,499.99.
🚚 Ships to your local FFL — we handle the paperwork and coordinate with your dealer. Most firearms ship same or next business day. Local? Free in-store pickup in Roanoke, TX.
The SIG M400 XSERIES 556 NATO is a semi-automatic AR-platform rifle built for accurate, reliable performance in sporting and recreational shooting. 16-inch barrel, match trigger, 30-round capacity.
The SIG M400 XSERIES 556 NATO rifle is a trusted semi-automatic AR-platform firearm engineered for shooters who demand accuracy and dependability. This rifle delivers consistent performance in sporting and recreational applications. The 16-inch carbon steel barrel balances velocity and handling. Moreover, the anodized black finish resists corrosion in any environment.
Additionally, the M400 XSERIES features SIG’s flatblade match trigger for crisp, consistent breaks. The low-profile gas block with mid-length system ensures reliable cycling. Furthermore, the Magpul SL collapsible stock allows quick adjustments for different shooters. The 30-round magazine capacity provides ample ammunition for range sessions.
Premium Performance and Reliability
This rifle excels at both distance and close-quarters accuracy. Therefore, competitive shooters and sport enthusiasts consistently praise its reliability. Indeed, the M400 XSERIES requires minimal maintenance. Semi-automatic operation ensures straightforward handling and regulatory compliance.
The modular AR platform design allows easy customization with aftermarket parts. As a result, you can tailor the M400 XSERIES to your specific needs. Whether you’re competing at the range or enjoying recreational shooting, this rifle performs dependably.
Available at Western Sport – Roanoke, TX
Western Sport is a licensed FFL/SOT dealer serving North Texas and the DFW area since 2007. We stock the SIG M400 XSERIES and provide expert guidance on operation and maintenance. Contact us at 817-393-4000 to discuss your firearm needs.
Why Buy from Western Sport?
Licensed FFL/SOT dealer with 17+ years of trusted service to North Texas.
Knowledgeable staff ready to answer your questions and help you find the right rifle.
Competitive pricing on SIG Sauer and other quality firearm brands.
Fast, professional transfer and after-sale support including maintenance advice.
Commitment to safe, responsible firearms retail in our community.
Frequently Asked Questions
Q: What ammunition does the SIG M400 XSERIES accept?
A: This rifle is chambered in 5.56 NATO and accepts standard 5.56 NATO and .223 Remington ammunition. It uses standard AR-platform magazines, so 30-round and other capacity magazines are widely available.
Q: Does the SIG M400 XSERIES come with a manufacturer warranty?
A: Yes, SIG Sauer firearms include a lifetime warranty covering defects in materials and workmanship. Western Sport can provide full details on warranty coverage and service options.
Q: How long does a Texas FFL transfer take at Western Sport?
A: Transfer times vary but typically complete within 3–7 business days. Contact Western Sport at 817-393-4000 to confirm current processing times for your transfer.
Q: What is the effective range of the M400 XSERIES for sporting use?
A: The 16-inch barrel delivers effective accuracy to 300+ yards with proper ammunition and shooter skill. The match trigger system supports both competitive and tactical precision shooting applications.
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