Shdw Mr/Xr-P Blk Bbl Comp Kit 4.2"

The Shadow Systems MR/XR-P barrel and compensator kit is a complete upgrade assembly designed to add precision recoil management to your MR920P or XR920P pistol. This kit pairs a match-grade barrel with a purpose-built compensator, letting you run a compact, fighting pistol that shoots flatter and faster without sacrificing holster compatibility. Built for shooters who want professional-grade performance without the guesswork of sourcing parts separately.

What sets this kit apart is the thoughtful engineering: the compensator uses a Tri-Lug attachment system for quick disassembly and maintenance, and the design is spatially efficient enough to fit standard G17 holsters—a rarity in compensated pistols. The all-steel construction is finished in nitride, a proven hard-coat process that resists corrosion and daily wear. Drop it into your MR920P or XR920P and you're ready to run; no gunsmithing required.

If you're building a duty, competition, or range gun and want the barrel and comp sorted as a matched pair, this kit cuts through the hassle. Shadow Systems engineered these components to work together, so you get the alignment and performance benefits of a purpose-built system—not a collection of parts bolted together and hoped for the best.

Key Features

• Drop-in compatible with MR920P and XR920P pistols
• Tri-Lug compensator attachment for easy field disassembly
• Compact profile fits standard G17-sized holsters
• Nitride-coated steel construction for corrosion and wear resistance
• Aligned compensator and slide contours for seamless aesthetics

Specifications

Frequently Asked Questions

Will this kit fit my standard MR920 or XR920?

No—this kit is specifically designed for the MR920P and XR920P models. Verify your pistol variant before ordering.

Can I use this compensator on other pistols?

This kit is engineered as a matched assembly for MR920P/XR920P pistols. The Tri-Lug attachment and barrel are specific to this platform.

Does the compensator affect holster fit?

No—the compact design allows the pistol to fit holsters made for G17-sized duty pistols, which is unusual for a compensated carry gun.

How do I remove the compensator?

The Tri-Lug attachment method allows quick disassembly of the compensator without tools, making cleaning and maintenance straightforward.