Home / Guns / Sig Sauer / Sig Sauer P365 Fuse 9mm 4.3 Barrel 21-Rounds w/ Romeo-X
8% below avg
Sig Sauer P365 Fuse 9mm 4.3 Barrel 21-Rounds w/ Romeo-X

Sig Sauer P365 Fuse 9mm 4.3 Barrel 21-Rounds w/ Romeo-X

Lowest Price
$1,055.61
MSRP
$1,249.99
Savings
16% off
Verified In Stock at
66 Stores
Updated
Aug 26, 2026
(2)-21 Round and (1)-17 Round Steel Magazine
3 Magazines
SIG-LOK Compact
Threaded Barrel

Specifications

Caliber
Brand
Model
P365XF
Series
Fuse w/Optic
MPN
365XF-9-BFO-RXSL
UPC
798681713349

Description

Sig Sauer P365 Fuse Features The Sig Sauer P365 Fuse is built around a 4.3 black DLC carbon steel barrel with a 6 7/8 optic stainless steel slide delivering the longest slide in its compact class for improved sight radius and enhanced control in a razor-thin 1 wide profile. The factory-installed Romeo-X SIG-LOC Compact utilizes Sig s proprietary five-point mounting system from underneath the pistol slide for a zero-shift ultra-low deck height optic connection while the fiber optic front and black serrated rear sights provide a reliable co-witness aiming solution. Two 21-round and one 17-round steel magazine are included for immediate high-capacity carry and range readiness. The P365 Fuse SIG-LOC optic-ready compact pistol features a black DLC stainless steel frame with beavertail and 1913 Picatinny rail paired with the LXG laser-engraved grip module and flat-faced trigger for a premium shooting experience that rivals custom builds straight from the factory. Interchangeable small medium and large backstraps allow shooters to dial in the grip fit that best supports a consistent controlled hold for improved recoil management and shooting comfort. At 1.55 lbs. and 1.10 wide with no manual safety and a 21+1 capacity the Fuse with Romeo-X SIG-LOC is the most complete and carry-ready Fuse configuration available. The P365 Fuse builds on the award-winning P365 platform by pushing capacity to 21+1 and incorporating a longer 4.3 barrel and extended slide for improved ballistic performance and sight radius while maintaining the slim iconic P365 profile that made it the best-selling pistol in America. The Romeo-X SIG-LOC Compact s fully enclosed sealed and gas-purged optical system with five-point mounting represents the most advanced factory optic integration available on any compact carry pistol eliminating zero shift from recoil and harsh impacts for unmatched reliability in a defensive carry package. For shooters who demand maximum capacity a factory-installed enclosed optic and premium ergonomics in the most concealable compact platform available the P365 Fuse with Romeo-X SIG-LOC is the definitive choice. Sig Sauer P365 Fuse Specifications Manufacturer: Sig Sauer Model: P365 Fuse Series: Fuse Caliber: 9mm Action: Striker Fire Capacity: 21+1 Barrel Length: 4.3 Barrel Material: Carbon Steel Barrel Finish: Black DLC Overall Length: 7.20 Height: 5.70 Width: 1.10 Weight: 1.55 lbs. Frame Material: Stainless Steel Frame Finish: Black DLC Frame Features: Beavertail / Picatinny Rail Slide Material: Stainless Steel Slide Finish: Black Nitron Slide Features: Serrated / Optic Grips: Black LXG Sights: Fiber Optic Front / Black Serrated Rear Optic: Romeo-X SIG-LOC Compact Mount Type: SIG-LOC Compact Footprint Trigger: Flat Face Safety: None Backstraps: Small / Medium / Large Included Includes: Romeo-X SIG-LOC Compact / 2 x 21-Round Steel Magazines / 1 x 17-Round Steel Magazine
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