Sig Sauer P320 XTen Comp 10mm 3.8in 2x15rd
About this product
The Sig Sauer P320 XTen Comp 10mm 3.8in 2x15rd is a compact, optic-ready 10mm pistol with an integrated compensator designed for field carry and defensive use. It combines the 10mm cartridge's stopping power with a package that balances shootability and concealment in a duty-grade platform. The pistol ships with two 15-round steel magazines and features Sig Sauer's XRAY3 Day/Night sights for immediate readiness.
What is the Sig Sauer P320 XTen Comp 10mm 3.8in 2x15rd used for?
This pistol serves as a compact duty and field carry option for 10mm users who need reliable performance in backcountry or defensive scenarios. The 3.8-inch barrel with integrated compensator reduces muzzle flip by approximately 20% compared to uncompensated barrels, making follow-up shots faster. It accepts optics via the Sig Pro RX/DeltaPoint Pro footprint, while the XRAY3 sights provide immediate target acquisition in low-light conditions.
How does the Sig Sauer P320 XTen Comp compare to the Glock 20?
The P320 XTen Comp outperforms the Glock 20 in recoil management due to its integrated compensator, but carries 5 fewer rounds per magazine. Where the Glock 20 holds 15+1 rounds of 10mm, the P320 XTen Comp uses 15-round magazines, trading capacity for a flatter shooting experience and superior sight options out of the box. The Sig's optic-ready slide also provides immediate mounting capability without aftermarket milling.
What does it weigh and what are the dimensions?
The pistol weighs 32.3 ounces loaded with a 15-round magazine and measures 7.2 inches in overall length. The 3.8-inch barrel incorporates a single-port compensator that adds 0.4 inches to the overall slide length compared to non-compensated models. The grip module measures 5.5 inches in height, providing full-hand purchase while maintaining concealable dimensions.
Who is this NOT for?
This pistol is not ideal for shooters seeking maximum magazine capacity or those operating in jurisdictions with magazine restrictions. The 15-round capacity falls short of the Stevens 334 Rifle's 4+1 capacity in a different platform, and some states limit magazines to 10 rounds. Additionally, the 10mm cartridge produces significant recoil that may challenge inexperienced shooters.
What's in the box?
The package includes the pistol, two 15-round steel magazines, and a cable lock for transport compliance. Sig Sauer provides the pistol with installed XRAY3 Day/Night sights and all necessary documentation, but excludes an optic plate—those must be purchased separately based on your optic's footprint. The magazines feature anti-tilt followers and are finished in black nitride for corrosion resistance.
Is the Sig Sauer P320 XTen Comp worth it at $947.99?
At $947.99, this pistol justifies its price through its integrated compensator, optic-ready slide, and premium sights that would cost over $300 to add aftermarket. Compared to the Stevens 555 Sporting shotgun at half the price, you're paying for modern defensive features rather than traditional field tools. For shooters who need 10mm performance in a compensated, optics-ready package, the value proposition is solid.
Specs at a glance
Video review
Pros & cons
What works
- Integrated compensator reduces muzzle flip by 20% versus uncompensated 10mm barrels
- 32.3 oz weight balances shootability with all-day carry comfort
- Optic-ready slide accepts Sig Pro RX/DeltaPoint Pro optics without milling
Trade-offs
- 15-round capacity trails Glock 20's 15+1 by one round
- $947.99 price requires additional $65-150 for optic mounting plates
- 10mm ammunition costs $0.60-0.80 per round versus $0.25 for 9mm
Expert review
Key attributes
| upc | 798681712878 |
| manufacturer | SIG SAUER |
| manufacturer part number | 320XCA-10-COMP-MS |
| action | Semi-Auto |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 3.8'' |
| caliber/gauge | 10mm |
| capacity | 15+1-Round |
| color | Black |
| length | 7.6'' |
| magazine included | 2 x 15-Round |
| model | P320 |
| mount type | Sig PRO RX Footprint |
| number of magazines | 2 15 rd. Steel Mags |
| package height | 3.0 |
| package width | 10.0 |
| product type | Semi-Auto Pistol |
| safety | Manual |
| shipping weight | 3.7 |
| sights | XRAY 3 Day/Night Sights |
| sights type | Night Sights |
| slide description | Optic Ready/Serrated |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is it compatible with Holosun 507C optics?
- No, the P320 XTen Comp uses Sig Sauer's proprietary Pro RX/DeltaPoint Pro footprint, which requires an adapter plate for Holosun optics. The CHPWS adapter plate (#AD-SIG-DPP-RMR) costs approximately $65 and adds 0.15 inches to optic height.
- Does it fit standard P320 holsters?
- Yes, the P320 XTen Comp fits most P320 holsters designed for compact models with manual safety cuts. The compensator may require an open-bottom holster or one specifically molded for compensated slides from brands like Tier 1 Concealed or Safariland.
- How long does shipping take to Montana?
- Shipping to Montana typically takes 3-5 business days after FFL verification, plus 1-2 days for background check processing. All firearms ship via FedEx with adult signature required and tracking provided within 24 hours of shipment.
- Can I return it if it doesn't fit my hand?
- No, firearms sales are final due to federal regulations, but the P320 platform offers interchangeable grip modules starting at $49.99. We recommend trying a similar P320 at a local range before purchase, as returns are only accepted for manufacturer defects.