The AR-style pistol market blends compact handling with proven semi-auto reliability, and this Sig Sauer offering fits squarely into that role for defense and range use. For shooters who want a short, controllable package with the familiarity of AR ergonomics, this model presents a balanced option at a practical price point.
SIG SAUER SIGM400 5.56 AR-15 AR15 PISTOL

Overview and tactical profile
The SIG SAUER SIGM400 5.56 AR-15 AR15 PISTOL is listed at $799.99 and classified under Semi Auto. Built on the familiar AR platform, chambered in 5.56, it offers low recoil, common ammunition availability, and consistent ballistic performance for both short-range defensive work and dynamic range training. The Sig Sauer name is notable for manufacturing standards and parts compatibility across AR-style platforms.
HWK XL 5.56 Giveaway
No purchase necessary
Entry link emailed immediately
A third-party retailer is currently hosting a giveaway for an HWK XL 5.56 pistol package (≈ $1,800 retail value).
I track legit firearm & gear giveaways and share the official entry links when they go live.
View product details and pricing — clicking this takes you to our shop page where you can purchase from the retailer.
Condition, included items, and what to expect
This specific listing is rated “Good” on the seller’s condition scale and is described as 100% in working order. The firearm comes with the pistol and one magazine. Cosmetic notes indicate scratches and dings; the bore is rated 7 out of 10 and the overall condition is estimated at 7/10. The seller provides multiple photos so buyers can assess wear—those images are included on the product page for transparency.
Why the condition details matter
For a buyer focused on function rather than a blemish-free collector piece, a “Good” working gun with a serviceable bore and included magazine represents solid value at $799.99. Expect reliable cycling and the usual advantages of a 5.56 AR-style pistol: controllable follow-up shots and straightforward maintenance.
Shop this product to view the full photo set and complete item description on our shop page.
Final purchase considerations
Assess the provided photos, confirm local compliance, and factor the stated bore and cosmetic condition into your decision. For buyers seeking a functional AR-style pistol with Sig Sauer pedigree and clear seller-provided condition notes, this listing is a practical option. Check current availability and make purchases directly from our shop page where your checkout will proceed to the retailer.
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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