Texas-based Rival Arms has made their name primarily as a Glock shop. While they do offer a handful of products for other firearms, like barrels for some Smith & Wesson handguns and a Ruger 10/22 chassis, the majority of their offerings to date have been Glock parts like custom slides, barrels, full upgrade kits, and more. However, this seems to be changing. Given the proliferation of SIG Sauer’s P320 series and the concealed-carry triumphs that are their P365 and P365XL handguns, it makes sense that shops like Rival Arms would expand their product lines to include these models. With a July 27th press release, Rival Arms has announced just that, and they will soon offer a menu of new SIG upgrades.

If you like Gucci Glock-style upgrades but you prefer to shoot SIGs, the market’s supply is responding to your demand.

“Dallas, TX – Rival Arms, manufacturer of high-quality, modular pistol components for do-it-yourself firearm enthusiasts, proudly announces their line of match-grade barrels, optic ready slides, guide rods, and slide completion kits for Sig Sauer® P320 and P365 firearms.

Rival Arms is quickly being recognized by firearm enthusiasts as the leading brand of quality aftermarket performance components. As the company expands its product line with multiple Sig Sauer platform options, the goal remains the same — to manufacture handgun components that exceed factory standards in material construction, precision tolerances, and durability.

Rival Arms will offer standard and threaded barrels for the Sig Sauer P365, P365 XL, P320 Carry, P320 Full Size, and P320 X5 pistols. All Rival Arms barrels start with a stainless-steel billet to deliver maximum durability and are then precision CNC-machined to exacting tolerances to ensure the greatest possible accuracy before being treated with a PVD coating. This coating provides exceptional wear and corrosion resistance and is available in black or gold colors. Threaded barrels come with 1/2-28 threads for use with popular aftermarket suppressors and compensators. A color-matching thread protector is included for use without muzzle devices.

Barrel Model Handgun Platform Muzzle Type Color

RA20P501A P320 X5 STANDARD BLACK
RA20P501E P320 X5 STANDARD GOLD
RA20P401A P320 FULL SIZE STANDARD BLACK
RA20P401E P320 FULL SIZE STANDARD GOLD
RA20P301A P320 CARRY STANDARD BLACK
RA20P301E P320 CARRY STANDARD GOLD
RA20P302A P320 CARRY THREADED BLACK
RA20P302E P320 CARRY THREADED GOLD
RA20P101A P365 XL STANDARD BLACK
RA20P101E P365 XL STANDARD GOLD
RA20P001A P365 STANDARD BLACK
RA20P001E P365 STANDARD GOLD
RA20P002A P365 THREADED BLACK
RA20P002E P365 THREADED GOLD

The Rival Arms slides for the P365 and P320 (Full Size and Carry available) are CNC-machined from 17-4PH stainless steel billet and QPQ thermo-chemical case hardened to deliver maximum strength, corrosion resistance, and durability. Robust serrations and window cuts enhance operational performance and appearance. For those intending to use optics, the Rival Arms slides come ready with either an RMR® cut or “other” cut suitable for a range of popular handgun optics (Docter®/Noblex®, TRUGLO®, Vortex®, Burris®, etc.)

Slide Model Fit Optic

RA10P401A P320 FULL SIZE RMR®
RA10P402A P320 FULL SIZE OTHER OPTIC
RA10P301A P320 CARRY RMR®
RA10P302A P320 CARRY OTHER OPTIC
RA10P001A P365 N/A

Slide completion kits for Sig Sauer® P320 and P365 are available from Rival Arms and include every part needed to assemble the internal workings of your new slide.

Kit Model Fit

RA42P001A P320
RA42P002A P365

Stainless steel and Tungsten High-performance guide rod assemblies are also available for the P365 and P365 XL models.

Guide Rod Model Fit Rod Material

RA50S101S P365 STAINLESS STEEL
RA50S101T P365 TUNGSTEN
RA50S111S P365 XL STAINLESS STEEL
RA50S111T P365 XL TUNGSTEN

For more information on Sig Sauer P365 and P320 upgrades and other Rival Arms precision-manufactured handgun components and accessories, visit rival-arms.com.

About Rival Arms:

Rival Arms brings premium aftermarket firearm components to passionate shooters and handgun enthusiasts. Offering the best in reliability, accuracy, and aesthetic design – Rival Arms parts are built in the USA with materials and coatings held to the strictest of tolerances. Located in Dallas, Texas, Rival Arms is dedicated to bringing precision and style to the world’s leading handgun platforms.

The new parts will available for a variety of SIGs from large to small.

Do you shoot SIGs competitively, or use one as your EDC gun? With the forthcoming options from SIG Custom Works and the new SIG Collective, of which Rival Arms is a member, these are exciting times for SIG fans. Where Glock was once the undisputed king of custom guns, it looks like the SIG market is responding to the brand’s popularity and working hard to catch up. What do you think of these new custom options? Will you be ordering any? Let us know your opinion in the comments! See you at the range.

Photos courtesy of SIG Sauer.