SIG Sauer P320 Compact

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SIG Sauer P320 Compact Gun Stats

SIG Sauer P320 Compact

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Striker-fired double action only. Disconnect safety. 3-point take down safety system. Takedown is prohibited without removal of magazine and without slide locked to rear. Stainless steel compact frame, Nitron slide finish and 1913 picatinny accessory rail. Interchangeable polymer grips; medium polymer grip module. Specifications: # of Mags: 2 Sight Radius: 5.8" Overall Length: 7.2" Height: 5.3" Width: 1.3" Weight Unloaded: 25.8 oz Accessories: Manual, Lock

SIG Sauer P320 Compact For Sale

SIG Sauer P320 Compact Specs

1 Brand

2 Category

Technical Data


9mm Luger (9mm Parabellum) (9x19mm)


Double Action Only




Flat Dark Earth


Night Sights

Barrel Length


SIG Sauer P320 Compact Features

The SIG Sauer P320 Compact is a semi-automatic, striker-fired pistol with a unique “frame” that consists of a removable trigger group chassis and grip module.  This makes the gun just about as modular as an AR15 since any combination of parts can be assembled to create a complete pistol.  Most frames include an accessory rail.  This gun has a 3.9 inch barrel that is paired with windage-adjustable sights.

SIG Sauer P320 Compact Ballistics

9mm Luger (9mm Parabellum) (9x19mm) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

SIG Sauer P320 Compact Capacity

The SIG P320 Compact is available in 9x19mm Parabellum (9mm Luger, 9x19mm NATO), .40 Smith & Wesson, .357 SIG and formerly in .45ACP and 10mmAuto.  When chambered in 9mm, this pistol has a standard magazine capacity of 15 rounds unless you live in a state run by squares who only let you run 10.  This pistol can also accept the standard full-size 17 and 21 round magazines.

SIG Sauer P320 Compact Ergonomics

The P320 Compact uses the same grip modules as the P250 and the ergonomics are argued by many as the best on the market.  For $45, you can change out the grip module to ones of different sizes to perfectly fit your hand.  The physical size of the grip allows for a full-handed hold with most users.  The slide includes grip serrations that flank both the front and rear sights to provide extra traction when manually cycling the action.

SIG Sauer P320 Compact Fit & Finish

The grip modules of the P320 are made of a polymer that smooths out pretty easily on the smooth surfaces, but the grip texturing takes a long time to wear down.  These grips are available in a bunch of different colors.  The slides and barrels are Nitron coated, a SIG specialty, and the slides can also be cerakoted in a handful of tan colors.

Fit and Finish

SIG Sauer P320 Compact Concealability

The P320 Compact is reasonably easy to conceal considering the size of it, and this can be done with a well-placed holster and a slightly larger T-shirt.  Where The only downside to concealment is during appendix carry where the grip tang can easily dig into your lower abdomen if you’re hiding it while you’re sitting down.

SIG Sauer P320 Compact Parts & Upgrades

How much is a SIG Sauer P320 Compact worth?

In 2024 a new or used SIG Sauer P320 Compact value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer P320 Compact and most handguns. The Price for a SIG Sauer P320 Compact has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a SIG Sauer P320 Compact Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $361.59 $472.85 $556.29
Excellent $333.77 $445.03 $500.66
Very Good $305.96 $445.03 $500.66
Good $278.15 $417.22 $472.85
Fair $194.70 $361.59 $445.03
Poor $139.07 $278.15 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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