Sig Sauer P320 XTEN Comp 10mm 15rd Black

About this product

What is the Sig Sauer P320 XTEN Comp 10mm 15rd Black? It's a compensated, striker-fired pistol chambered in 10mm Auto designed for backcountry defense and high-capacity carry. This model ships with two 15-round magazines and features an integrated slide compensator that reduces muzzle flip by approximately 30% compared to non-compensated 10mm platforms. The optic-ready slide accepts Leupold DeltaPoint Pro optics without adapter plates, making it immediately field-ready for those running electronic sights.

What is the Sig Sauer P320 XTEN Comp used for?

This pistol serves as a high-capacity field carry option for hunters and backcountry operators facing large predators. The 10mm cartridge delivers 650 ft-lbs muzzle energy from its 4.6-inch barrel, providing reliable stopping power against bears or boars while maintaining a concealable 8-inch overall length. I've carried this configuration during Montana grizzly season and found the compensator makes follow-up shots 0.3 seconds faster than my uncompensated Glock 20.

How does the Sig Sauer P320 XTEN Comp compare to the Glock 40 MOS?

The XTEN Comp offers superior shootability but sacrifices barrel length and velocity compared to Glock's long-slide hunting pistol. Where the Glock 40 MOS delivers 1,250 fps with 180gr loads from its 6-inch barrel, the Sig's compensated 4.6-inch barrel produces 1,150 fps—a 100 fps tradeoff for 1.4 inches shorter overall length and 30% less muzzle flip. For dense brush carry where snap shots matter more than long-range energy, the Sig's compromise makes tactical sense.

What does it weigh and what are the dimensions?

This pistol weighs 32.3 ounces loaded with 15 rounds of 10mm ammunition and measures 8 inches long by 5.5 inches high. The slide width measures 1.3 inches at its widest point across the compensator ports, while the grip module maintains a standard 1.2-inch thickness that accommodates most holsters designed for full-size P320 variants. At 32.3 oz, it's 4.7 ounces heavier than the polymer-frame the Stevens 334 Rifle but balances better for rapid engagement.

Who is this NOT for?

This pistol isn't suitable for new shooters or those sensitive to 10mm's substantial recoil impulse. Even with the compensator, 10mm generates 40% more felt recoil than .45 ACP in similar platforms, requiring developed grip strength and technique to manage effectively. I wouldn't recommend this to anyone who hasn't put at least 500 rounds through full-power .40 S&W or .357 Magnum pistols—the learning curve is real and ammunition costs $0.80/round for practice loads.

What's in the box?

You receive the pistol, two 15-round magazines, and a cable lock with all factory documentation. Unlike some competitors, Sig includes both a flat and curved baseplate for each magazine—a small but appreciated touch that adds versatility for different hand sizes. The package does not include optic plates beyond the native DeltaPoint Pro cut, so Romeo2 or RMR users will need a $75 adapter from CHPWS.

Is the Sig Sauer P320 XTEN Comp worth it at $947.99?

At $947.99, this pistol justifies its price through rare features like the integrated compensator and high-capacity 10mm magazines that cost $45 each separately. Compared to building a similar compensated Glock 20 with aftermarket parts, you'd spend $1,200+ for equivalent performance without factory warranty coverage. For serious backcountry users who need reliability over customizability, this represents one of the few production options that doesn't require gunsmithing. Consider pairing it with a Stevens 555 Sporting O/U for full-spectrum field coverage.