Sig Sauer M400 SRP for sale
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Sig Sauer M400 SRP 5.56 NATO 16" Rifle RM400-16B-C-SRP
Brand:
Sig Sauer
Barrel Length:
20"
Caliber:
20 Gauge
Capacity:
30
Marketplace Insights
★ 4.7/5
based on 12 customer reviews across 1 variants from 1 retailers
Stoeger Coach Gun offers exceptional value and reliable performance for home defense and sport shooting, though rare quality control issues have been reported.
What customers like
Excellent Value42%
At $399.99 this was well worth the money!
Reliable Performance33%
Never had a problem with it in 6 years and it does not get treated with kid gloves
Quality Build25%
I really did not expect the quality it has
Fast Shipping17%
Placed order on a tuesday and firearm arrived at an FFL on thursday
Common concerns
Stiff Action/Heavy8%
The guns break open action is entirely too stiff
Accuracy Issues8%
the left barrel shot 2ft high and about 2 ft left of the target
Frequently Asked Questions
Sig Sauer M400 SRP for sale
How much does a M400 cost?
SIG Sauer M400 rifles typically cost around $1,100, with most listings ranging from $900 to $1,600 depending on the variant and retailer. Check our marketplace for real-time pricing on available models.
Is the SIG M400 a good AR-15?
The SIG M400 Tread is a reliable, accurate AR-15 that performs well out of the box. It's a solid choice for range shooting and home defense, offering dependable function at a reasonable price. Particularly well-suited for shooters new to the AR-15 platform.
Is the SIG M400 a 556 or 223?
The SIG M400 is chambered in 5.56 NATO. You can also safely shoot .223 Remington through it, but not the reverse—a .223 chamber is too tight for 5.56 NATO's higher pressure loads.
What rifle do most Navy Seals use?
Navy SEALs primarily use the M4A1 carbine, chambered in 5.56mm NATO, often configured with SOPMOD accessories including optics, suppressors, and lights. They also use the HK416 in certain roles. Specific loadouts vary by mission and unit preference.
Are M4 and M400 the same?
No. The M4 is a select-fire military carbine. The SIG M400 is a semi-automatic civilian AR-15 variant styled after the M4 but not identical to it. Both fire 5.56 NATO, but the M4 has fully automatic capability that the M400 lacks.
What sig sauer to stay away from?
The P320's alleged uncommanded discharge claims have been rejected by thirteen courts, with evidence pointing to handling errors rather than design flaws. Some federal agencies have stopped using it amid concerns, adding nuance. Overall, the P320 remains widely trusted; research its history and consider the P365 or SP2022 as alternatives.
Is a 556 round more powerful than a 223?
5.56 NATO runs at higher chamber pressure than .223 Remington, producing slightly more velocity and energy. The practical difference is modest, but 5.56 is generally considered the more powerful round. A rifle chambered in 5.56 can safely fire both; a .223 chamber should not fire 5.56.