SIG Sauer P320-XTEN COMP Custom Works Endure 10mm, 3.8 in Bull Barrel, Slide-Integrated Compensator, Compact, Tritium Sights
This P320-XTEN COMP from SIG Sauer Custom Works stands out with its Endure series topographic Cerakote finish in light earth/green, a slide-integrated compensator, and a 3.8 in bull barrel chambered in 10mm Auto. It features the modular P320 serialized FCU, tritium night sights, and an XSeries grip module with laser-textured panels, combining distinctive Custom Works styling with practical performance details.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol is in great shape with mild wear. The optic cover plate is not present.
What's Included
- SIG Sauer factory hard case
- SIG Sauer owner's manual
- SIG Custom Works Certified Custom card
- SIG Custom Works challenge coin/medallion
- Two 17-round factory steel double-stack magazines
- One 15-round factory steel double-stack magazine
The Endure series treatment gives this pistol a factory-applied topographic Cerakote finish in light earth/green with laser-etched patterning and the SIG Custom Works emblem on the slide. The engraving is factory done and consistent with the Custom Works Endure theme.
Its 3.8 in bull barrel pairs with a slide-integrated expansion-chamber compensator to help manage 10mm recoil in a compact package. The flat-faced trigger delivers a 90-degree break, and the slide includes front and rear serrations for positive manipulation.
The XSeries 10mm/45-size carry-length grip module uses LXG-style laser texturing for traction and includes a removable flared magwell. Controls include an ambidextrous slide catch and a left-side magazine release. A true M1913 Picatinny rail with four usable slots is molded into the dust cover.
Sight configuration is a 3-dot tritium set: a tritium front with a green ring marked TG H3 and a tritium rear sight. The slide is cut for the SIG PRO footprint, ready for compatible pistol optics as configured by the user.
Key markings include the slide marked P320 and the barrel hood marked "10mm AUTO SIG SAUER," with manufacture noted in NEWINGTON, NH, USA. Overall dimensions are 7.6 in long, 5.6 in high, and 1.4 in wide, with a listed weight of 32.3 oz with magazine and a capacity of 17+1. The modular, serialized P320 FCU is present, and the FCU serial matches the included case label dated 16-JUN-2025.