Sig Sauer P365 XMacro X-Change Kit 3.1" Compensated Slide 17-Rounds - 8901443

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Sig Sauer® P365-XMACRO COMP 9mm Caliber X-Change Kit – Integrated Compensated Slide Assembly – 3.1-Inch Barrel – X-RAY3 Day/Night Tritium Sights – Optic Ready (RMSc Cut) – Black Polymer XMACRO 1913 Frame – Includes (2) 17-Round Steel Magazines – 8901443

Product Description

The Sig Sauer® P365-XMACRO COMP 9mm Caliber X-Change Kit (8901443) represents a definitive technical milestone in modular small arms logistics, personal defense weapon optimization, and toolless platform transformation, masterfully engineered and manufactured by Sig Sauer. Purpose-built to maximize the latent versatility of the multi-patented, standalone P365 Fire Control Unit (FCU), this premium conversion matrix allows marksmen to instantly morph a legacy micro-compact sidearm into a full-size-handling, high-capacity defense engine without the administrative burden or expense of purchasing a secondary serialized firearm receiver. While standard subcompact handguns introduce severe snappy recoil and short, restrictive grip vectors that compromise manual leverage, the X-Change system completely rewrites the subcompact handling dynamic. This comprehensive component payload (798681680207) yields absolute structural authority, adapting your daily concealed carry framework smoothly into duty, competitive target, or high-tempo home defense roles.

The core mechanical triumph of this transformation kit centers on the integrated expansion chamber compensated slide assembly wrapped in a durable, low-reflective Nitron® finish. Moving beyond bulky aftermarket threaded barrel compensators that disrupt holster compatibility and induce cyclic unreliability, Sig Sauer’s engineers milled the porting architecture directly into the stainless steel slide architecture itself. Paired with a precision-ground 3.1-inch carbon steel barrel, the slide extends forward to create an integral expansion block. As high-pressure propellant gases chase the bullet out of the muzzle, they are instantly redirected upward through dual top-facing exhaust ports. This architectural venting routes vertical blast energy counter to natural muzzle flip, taming snappiness and shrinking your split-second tracking loop so you can drive fast follow-up shots flat and on-target. The slide comes pre-fit with a 3-dot tritium X-RAY3 Day/Night Sight system for immediate low-light indexing and features a removable rear sight plate revealing a specialized micro red dot optic cut matching the standard Shield RMSc and Holosun 407K/507K footprint layout.

The secondary foundational upgrade layer of this factory OEM package relies on the all-inclusive XMACRO high-capacity polymer grip module and extended magazine network. The upgraded frame structure expands your handling real estate to afford a full, comfortable hand-filling purchase, utilizing a deeply undercut trigger guard and an extended rear beaver-tail tang to funnel the master hand high toward the natural bore line. The dust cover trades away legacy proprietary accessory tracks for a true, full-length MIL-STD 1913 Picatinny rail, giving operators the freedom to directly lock down full-size tactical weapon lights or training modules. Bundled with interchangeable small, medium, and large backstraps to dynamically adjust trigger reach, and accompanied by two factory 17-round steel magazines with low-friction polymer followers, this 18.4-ounce black Nitron configuration grants you absolute administrative, structural, and ballistic control over your compact workspace.

Includes: (1) Authentic Sig Sauer P365-XMACRO COMP Complete Slide Assembly (Matte Black Nitron Finish, Integrated Expansion Chamber Compensator, Removable Optic Plate), (1) Sig Factory 3.1" 9mm Carbon Steel Barrel, (1) Pre-Installed X-RAY3 Tritium Day/Night Sights, (1) Complete Guide Rod and Recoil Spring Assembly, (1) XMACRO Black Polymer Grip Module with Full-Length 1913 Picatinny Rail, (3) Sizing Backstrap Inserts (Small, Medium, Large), and (2) Original 17-Round Factory Steel Magazines with Flush-Fit Macro Basepads, Packed inside a Branded Factory Retail Hard Case.

*Administrative Armorer Staging, Caliber Conversion & Statutory Compliance Guidance: The Sig Sauer 8901443 X-Change Kit is a non-serialized factory conversion assembly that drops directly onto your existing active chassis. **CRUCIAL PLATFORM SEATING WARNING:** This kit is engineered exclusively to accept 9mm Luger standalone P365 Fire Control Units (FCUs); **it natively supports non-manual safety trigger frames out of the box, and while it interfaces with manual safety FCUs, the included polymer grip module does not feature side safety relief slots and requires professional armorer manual safety modification cuts or an alternative safety-cut frame shell to seat safely**. **HIGH-CAPACITY COMPLIANCE NOTICE:** This conversion kit includes two 17-round extended steel magazines and **strictly cannot be distributed, transferred, or shipped to restrictive municipal jurisdictions enforcing strict 10-round or 15-round capacity statutory boundaries**. Always explicitly verify your source firearm’s chamber is verified clear and completely unloaded on your bench setup before lifting out your serialized FCU frame loop.

Everything you need to convert your P365 to our new P365-XMACRO COMP.