Sig Sauer P320: Night Sight Precision & Trijicon Optics

As former operators and lifelong students of practical shooting, we break down gear the way we’d inspect it before a mission: clear, methodical, and with an eye for what really matters when the lights go down or the pressure rises. This review focuses on real-world performance, ergonomics, and what you get out of the box — the kind of details that separate a good firearm from one you can rely on.

SIG SAUER P320 arrives outfitted for duty: two 17-round magazines, the original case and owner’s manual, an ambidextrous slide release for true left- and right-hand manipulation, optic plates for quick red-dot mounting, factory night sights and a Trijicon RCR red dot optic. This particular example is Certified Used, meaning it carries the Certified Used stamp that guarantees very good to excellent condition and includes a ‘no questions asked’ return policy. At $1,044.99, it’s positioned as a high-value package for shooters who want professional features without paying a full-new premium. Shop this product

Why night sights and the Trijicon RCR matter

When light conditions drop, sight acquisition is the difference between a confident shot and hesitation. The factory night sights give a passive reference in low light — a glowing front and rear setup that makes rapid alignment possible without electronics. Layering a Trijicon RCR red dot on top of that changes the equation: the dot lets you present and engage while keeping both eyes open, and it reduces the need for perfect cheek weld or sight picture at close to moderate ranges.

Night sights: dependable backstop

Night sights are low-power, maintenance-free indicators. If the red dot gets bumped off or runs out of battery (rare but possible), the tritium night sights remain a usable aiming option. For defensive-minded shooters, that redundancy is a practical benefit — not flashy, just reliable.

Trijicon RCR: quick, durable, and battle-proven

The Trijicon RCR is designed for speed and durability. With optic plates included, the mounting process is straightforward; the slide doesn’t require permanent alteration beyond standard plate installation. For anyone training for dynamic scenarios or competitive matches, the red dot speeds target transitions and tightens groupings at common engagement distances.

Ergonomics, controls, and magazines

The ambidextrous slide release is a small feature that pays dividends when you need fast, repeatable manipulations with either hand. Paired with two 17-round magazines, the SIG SAUER P320 package gives you a full-capacity defensive setup right out of the case. Two mags mean you can run drills or practice reloads without immediate extra investment, and the supplied original case and manual preserve value and ease of ownership.

Sig Sauer pistols are known for intuitive controls and predictable triggers. While the platform has multiple model variations, this Certified Used unit checks off the core items most shooters want: durable controls, optic-ready options, and magazine capacity that fits defensive and range days alike.

Certified Used: what that stamp actually delivers

Buying Certified Used from a reputable dealer gives you practical protections: verified condition grading (very good to excellent), included accessories, and the peace of mind of a ‘no questions asked’ return policy. That means if the firearm arrives and you find a mismatch with expectations, you’re able to return it without the usual buyer’s hassles. For new shooters or tight budgets, Certified Used lets you step into premium features — like factory night sights and a quality Trijicon optic — for $1,044.99.

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Field performance and training notes

On the range the combination of night sights and the RCR shines. The red dot accelerates sight acquisition and reduces parallax issues at common defensive ranges. The night sights provide a consistent fallback. Train for transitions: draw to dot, reacquire to night sights if necessary, and practice reloads using the two included 17-round magazines so magazine changes become second nature under stress.

Maintenance and longevity

Routine maintenance keeps optics and night sights functioning. Clean the slide and optic plate interfaces to prevent debris from affecting the dot or mounting hardware. The conservative approach is to check optic zero after a few hundred rounds and after any hard impact. The included original case and manual are handy for storage and reference during service intervals.

Accessories and upgrade path

With optic plates included, future upgrades are natural: different red dots, suppressor-height sights, or aftermarket sights that match your optic co-witness preferences. The two 17-round magazines are a solid start; add spare mags and a quality holster matched to the optic footprint for a complete carry or duty system. Remember that Certified Used units often retain original accessories, which adds to resale value if you decide to change platforms later.

Final assessment

The SIG SAUER P320 package here gives a pragmatic mix of features: ambidextrous controls, dual 17-round magazines, factory night sights, Trijicon RCR red dot, optic plates, and the convenience of the original case and manual. For $1,044.99 as a Certified Used firearm with a ‘no questions asked’ return policy, this setup is an efficient way to get optics-equipped, low-light-capable performance without sacrificing reliability. If you’re looking for an optic-ready, defensive-capable semi-auto with proven components, this is a setup worth examining. Check availability on the product page to see current stock and to make your purchase. Check current availability

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.