Sig Sauer Logo
SIG SAUER P320 Safety Information
July 29, 2025
Click here to read more

Sig Sauer P320 Compact 9mm Striker-Fired Pistol with ROMEO1 Reflex Sight

  • Item Number: 320C-9-B-RX
  • /
  • View More Items by Sig Sauer
  • /
  • Condition: NEW
Sig Sauer P320 Compact 9mm Striker-Fired Pistol with ROMEO1 Reflex Sight
$749.99 $779.99

Temporarily Out of Stock

Includes FREE shipping
  • SPRINGFIELD ECHELON 9MM COMPACT 4 IN THREADED BARREL WITH OPTIC 5 MAGS AND RANGE BAG

    Springfield Echelon 4.0C 9mm Pistol with Threaded Barrel, Viridian Green Dot, Five Magazines and Range Bag
    $1,072.97 $549.99

  • KIMBER MICRO 9 CINDER 9 MM

    Kimber Micro 9 Cinder 9mm Semi-Auto Pistol
    $419.99

  • SPRINGFIELD HELLCAT PRO 9MM COMP BLK OSP NS25 W/ RFX GREEN DOT

    Springfield Hellcat Pro Comp 9mm Pistol with Viridian Green Dot, 3 Extra Magazines and Range Bag
    $835.00 $599.99

  • RUGER MAX-9 9MM 3.2 MS FSIGHT BLK (1) 12-RD

    Ruger MAX-9 9mm Optic Ready Semi-Auto Pistol with 3.2 Inch Barrel
    $299.00 $239.99

  • FNH 509T 9MM PISTOL BLK WITH VORTEX VIPER RED-DOT SIGHT

    FN 509 Tactical 9mm Black Pistol with Vortex Viper Red-Dot Sight
    $1,159.00

  • MILITARY ARMAMENT CORPORATION MAC 5K 9MM 5.8` BARREL ROLLER DELAYED BLOW BACK PISTOL 2-30RND MAGS

    Military Armament Corporation MAC-5K 9mm Pistol with 5.8 Inch Button Rifled Barrel
    $1,099.99 $919.99

  • RUGER EC9S 9MM BLACK PISTOL 3.12 IN BBL

    Ruger EC9s 9mm Striker-Fired Pistol
    $349.00 $219.99

  • KELTEC P15 9MM PISTOL

    Kel-Tec P15 9mm Pistol
    $229.99

  • WALTHER PDP COMPACT 9MM OPTIC READY STRIKER-FIRED PISTOL WITH 5 INCH BARREL

    Walther PDP Compact 9mm Optic Ready Striker-Fired Pistol with 5 Inch Barrel
    $649.00 $449.99

  • RUGER EC9S 9MM GRAY FRAME BLACK SLIDE 3.12 IN BBL

    Ruger EC9s 9mm Carry Conceal Pistol with Gray Frame
    $369.00 $219.99

  • SPRINGFIELD ECHELON 9MM PISTOL GEAR-UP PACKAGE

    Springfield Echelon 9mm Optic-Ready Gear Up Package with 5 Magazines, Range Bag and Crimson Trace Red Dot
    $700.00 $579.99

  • SPRINGFIELD HELLCAT PRO COMPACT OSP 9 MM 3.8 IN BARREL 3-15 RD AND 2-17 RD MAGS

    Springfield Hellcat Pro OSP 9mm Semi-Auto Pistol Gear-Up Package with Five Magazines and Crimson Trace Red Dot
    $569.99

  • CCI 9mm 115 gr FMJ-RN Blazer Brass 50/Box

    CCI 9mm 115 gr FMJ-RN Blazer Brass 50/Box
    $24.99 $10.98
    ($0.22 / round)

  • CCI 9mm 124 gr FMJ Blazer Brass 50/Box

    CCI 9mm 124 gr FMJ Blazer Brass 50/Box
    $25.99 $10.99
    ($0.22 / round)

  • Wolf Ammo 9mm 115 gr FMJ Bimetal Steel Performance Ammunition 50/Box

    Wolf Ammo 9mm 115 gr FMJ Bimetal Steel Performance Ammunition 50/Box
    $8.99
    ($0.18 / round)

  • CCI 9mm Luger 100 gr FMJ Blazer Brass Reduced Recoil 50/Box

    CCI 9mm Luger 100 gr FMJ Blazer Brass Reduced Recoil 50/Box
    $23.99 $11.99
    ($0.24 / round)

  • Maxx Tech 9mm Luger 115 gr FMJ Brass Case Target Ammo 50/Box

    Maxx Tech 9mm Luger 115 gr FMJ Brass Case Target Ammo 50/Box
    $16.95 $11.99
    ($0.24 / round)

  • Federal 9mm Luger 115 gr FMJ American Eagle  50/Box

    Federal 9mm Luger 115 gr FMJ American Eagle 50/Box
    $24.99 $16.99
    ($0.34 / round)

  • Norma 9mm 158 gr TMJ Subsonic Rival Competition 50/Box

    Norma 9mm 158 gr TMJ Subsonic Rival Competition 50/Box
    $19.99
    ($0.40 / round)

  • Hornady 9mm 115 gr Critical Defense 25/Box

    Hornady 9mm 115 gr Critical Defense 25/Box
    $22.49
    ($0.90 / round)

  • Hornady 9mm Luger 100 gr FTX Critical Defense Lite 25/Box

    Hornady 9mm Luger 100 gr FTX Critical Defense Lite 25/Box
    $22.49
    ($0.90 / round)

  • Hornady 9mm 115gr FTX Critical Defense 100 Rounds in Ammo Can

    Hornady 9mm 115gr FTX Critical Defense 100 Rounds in Ammo Can
    $94.99
    ($0.95 / round)

  • Remington 9mm 115 Gr FMJ Range 50/Box

    Remington 9mm 115 Gr FMJ Range 50/Box
    $23.99 $14.99
    ($0.30 / round)

  • Hornady 9mm Luger +P 124 gr XTP American Gunner 25/Box

    Hornady 9mm Luger +P 124 gr XTP American Gunner 25/Box
    $22.17 $18.99
    ($0.76 / round)

  • SIG SAUER P250/P320 FULL-SIZE 9MM 21 RD MAG

    Sig Sauer P320 Full-Size 9mm 21-Round Factory Magazine
    $58.00 $35.99

  • SIG SAUER P320 M17 9MM 17 RD MAG (COYOTE)

    Sig Sauer P320 Full-Size/M17 9mm 17-Round Coyote Magazine
    $49.00 $35.99

  • SIG SAUER P320/P250 COMPACT 9MM 15 RD MAG

    Sig Sauer P320/P250 Compact 9mm 15-Round Factory Magazine
    $46.00 $35.99

  • ETS GROUP SIG SAUER P320 9MM 15 RD MAG

    Elite Tactical Systems Sig Sauer P320 9mm 15-round Magazine
    $21.99

  • SIG SAUER P320 9MM 17RD POLICE TRADE MAGAZINE

    Sig Sauer P320 Full-Size 9mm 17-Round Police Trade-In Magazine
    $14.99

  • SIG SAUER P320 COMPACT 9MM 10 RD MAG

    Sig Sauer P320 Compact 9mm 10-Round Factory Magazine
    $49.00 $35.99

  • MAGPUL AMAG 17 SG9 9MM 17RND MAG FOR SIG SAUER P320

    Magpul AMAG 17 SG9 9mm 17-Round Magazine for Sig Sauer P320/M17
    $34.95 $27.99

  • ETS GROUP CARBON SMOKE FITS SIG SAUER 320 17RD 9MM MAG EXTENDED

    Elite Tactical Systems Sig P320 9mm 17-Round Carbon Smoke Magazine
    $14.49 $9.99

  • ETS GROUP CARBON SMOKE FITS SIG SAUER 320 30RD 9MM MAG EXTENDED

    Elite Tactical Systems Sig P320 9mm 30-Round Carbon Smoke Magazine
    $14.99 $10.49

  • ETS GROUP OMEGA FITS SIG SAUER 320 17RND 9MM MAG

    Elite Tactical Systems Omega 17-Round 9mm Magazine for Sig Sauer P320 Pistols
    $25.99 $19.99

  • MAGPUL AMAG 15RND 9MM FITS SIG LP320 SILVER STAINLESS STEE

    Magpul AMAG P320 9mm 15-Round Magazine with Silver Stainless Steel
    $34.95 $33.99

Product Description

What's in the Box

  • P320 Compact 9mm
  • (2) 15-Round Magazines
  • ROMEO1 Reflex Sight
  • (1) Battery
  • Cable Lock
  • Owner's Manual

The only pistol in its class to include a slide-mounted reflex optic, the ROMEO1, the RX will ensure faster sight acquisition on target. Simply put, it will make a good shooter a great shooter. No other manufacturer offers a pistol with a reflex sight ready to go out of the box. Shoot confidently with faster target acquisition and improved accuracy. Installed. Zeroed. And backed by the quality of the SIG name.

The P320 Compact offers a smooth, crisp trigger to make any shooter more accurate, an intuitive, 3-point takedown and unmatched modularity to fit any shooter and any situation. Its full-size frame is ideal for target shooting, home defense and any scenario where shootability and sighted accuracy are of the highest priority. This modular, striker-fired pistol features a full-size grip, full length slide, and choice of contrast or SIGLITE Night Sights. Available calibers include 9mm, .357SIG, .40S&W and .45ACP. Safety features include a striker safety, disconnect safety.

About the ROMEO1 Reflex Sight

ROMEO1 The ROMEO1 features a molded glass aspheric lens with high performance coatings for superior light transmittance and zero distortion. Manual illumination controls remember your last used settings. Three MOA Red-Dot with multiple intensity settings ensures rapid target engagement under a full range of lighting conditions. The readily available CR1632 battery is top-loading, allowing for quick battery replacement without having to remove the sight from the firearm. Extremely strong and lightweight aircraft grade CNC Magnesium housing ensuring a lifetime of reliable service. Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance.

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: P320 Compact RX
  • Caliber: 9mm Luger
  • Barrel Length: 3.9"
  • Overall Length: 7.2"
  • Action Type: Striker-Fired DAO
  • Sight Radius: 5.8"
  • Weight w/Mag: 25.8 oz
  • Grips: Interchangeable Polymer
  • Frame Finish: Black Polymer
  • Sights: Contrast Sights

Customer Comments & Questions

Customer Reviews

No reviews have been written for this product.

Write a review