SIG SAUER P320-XTEN Comp – 10mm Auto, 3.8" Bull Barrel, 2x15 (320XCA-10-COMP)
The P320-XTEN Comp is SIG’s carry-length 10mm Auto with a single-port slide-integrated expansion chamber and a 3.8-inch bull barrel — built for backcountry carry without giving up capacity. It ships with two 15-round steel magazines, XRAY3 day/night sights, a flat X trigger with a 90-degree break, and a PRO optic-ready slide. SIG part 320XCA-10-COMP, UPC 798681688715. This listing is for the XTEN Comp 3.8" / 2x15 configuration only.
Slide-Integrated Comp and Bull Barrel
SIG pairs a ported slide with an integrated expansion chamber and a 3.8-inch bull barrel for recoil mitigation on a compact 10mm. SIG’s announcement cites roughly 20% recoil reduction from that slide/barrel pairing. Overall length is 7.1 inches; height 5.6 inches; width 1.4 inches; weight with magazine 32.3 oz.
X-Carry Grip, Flat Trigger, Optic Ready
- Polymer XCarry grip module — X-Carry length for this 10mm platform
- Flat striker-fired X trigger with a 90-degree break
- PRO optic-ready footprint; SIG lists optimization for ROMEO2 and ROMEOX Pro
- XRAY3 day/night sights; sight radius 5.7 inches
- Nitron finished stainless slide with front and rear serrations
- M1913 accessory rail
- Two 15-round steel magazines
SIG SAUER P320-XTEN Comp Specifications
| Manufacturer | SIG SAUER |
| Model | P320-XTEN Comp |
| Part Number | 320XCA-10-COMP |
| UPC | 798681688715 |
| Caliber | 10mm Auto |
| Pistol Size | Compact |
| Action | Striker-fired |
| Trigger | Flat X, 90-degree break |
| Barrel Length | 3.8" [96.52 mm] bull barrel |
| Threaded Barrel | No |
| Compensator | Single-port slide-integrated expansion chamber |
| Magazines Included | (2) 15rd steel |
| Sights | XRAY3 Day/Night |
| Optic Ready | Yes — PRO footprint |
| Sight Radius | 5.7" [145 mm] |
| Slide Finish / Material | Nitron / stainless steel |
| Grip Module | Polymer XCarry |
| Manual Safety | No |
| Accessory Rail | M1913 |
| Overall Length | 7.1" [180 mm] |
| Overall Width | 1.4" [36 mm] |
| Height | 5.6" [142 mm] |
| Weight | 32.3 oz [915.7 g] w/ magazine |
Frequently Asked Questions
What does the Comp do?
SIG integrates a single-port expansion chamber into the slide and pairs it with a 3.8-inch bull barrel for recoil mitigation on this 10mm.
How many magazines are included?
SIG lists two 15-round steel magazines with 320XCA-10-COMP.
Is it optic-ready?
Yes. SIG publishes a PRO optic-ready footprint and notes optimization for ROMEO2 and ROMEOX Pro.
Does this SKU have a manual safety?
No. SIG’s Models matrix lists Manual Safety No for 320XCA-10-COMP.
Internal Reference:
320XCA-10-COMP
Barcode:
798681688715
| Brand: Sig Sauer |
| Model: P320, P320 X-Ten |
| Caliber: 10mm |
| Capacity: 15 |
| Firearm Action: Semi-auto |
| Barrel Length: 3" - 4", 4" |
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This product may have shipping restrictions in some states.
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Customer Feedback
Does the JOB
By Anonymous
Great gun, I have yet to take it to the woods.
This item cannot be shipped to the following locations due to legal or carrier restrictions:
Restriction Details
This product cannot be sold or shipped to your location due to magazine capacity restrictions. Magazine capacity cannot exceed 10rd. If you believe this to be incorrect or if you're exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (10):
Restriction Details
Vermont restricts rifle magazine capacity to 10rd. This exceeds the state's restricted capacity. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.