Shadow Systems MR920 Handgun 9mm 10/rd 4″ Barrel Black Frame Foundation Slide Optic Black
The SHADOW SYSTEMS MR920 Foundation Slide is a compact, optics-ready 9mm pistol built for controllability and modular ergonomics. It features a Foundation-style slide and an optic cut with a black frame and black slide finish. The MR920 is designed to accept standard Gen 4 G19 magazines and to fit common holsters and equipment configured for that footprint. For a sighting solution under $1,000, the Holosun 507C X2 is a practical match that maintains sight height compatibility and provides robust electronic sighting at a reputable price point.
Common applications for this pistol include everyday carry (EDC) and precision range training or target shooting.
Product Specifications
The manufacturer is SHADOW SYSTEMS.
The model is MR920.
The manufacturer’s part number is SS-1334.
The caliber is 9mm.
The barrel measures 4 inches.
The magazine capacity is 10 rounds.
The frame finish/color is black.
The slide is a Foundation Slide and is optic-ready.
The guide rod is black carbon steel.
The sights are steel white-dot style.
The trigger is a polymer flat face with an advertised pull around 4–4.5 lb.
The package includes two 10-round magazines.
The kit includes three backstraps and a backstrap tool.
The overall length is 7.25 inches and the height is 4.75 inches.
The UPC is 810013439250.
The MR920 balances compact dimensions with a feature set aimed at shooters who want a modern, optic-ready platform that integrates easily with common 9mm accessories. Its configurable grip, aggressive ergonomics, and standard G19-compatible magazine interface make it well suited for daily carry setups and disciplined range work where controllability and sighting options matter.
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