Glock G43X MOS 9mm Slimline — Custom-Cut Gray Slide, Radian RAMJET/AFTERBURNER, FDE Frame, RMSc Footprint, 15+1
This Glock G43X MOS stands out as a Slimline 9mm configured with a custom-cut gray slide over an FDE frame, a match-grade 416R stainless Radian RAMJET barrel paired with the AFTERBURNER micro compensator, and clear RMSc-footprint optics cut with cover plate installed. Aftermarket iron sights and an included Shield Arms S15 steel magazine deliver a 15+1 capacity in a clean, two-tone package.
The pistol is a G43X MOS from Glock’s Slimline series with a striker-fired action and Safe Action system. The custom-cut slide features factory-style front and rear cocking serrations and an RMSc-pattern micro-optic cut, currently fitted with the MOS cover plate and screws. Its two-tone appearance pairs a gray slide with a Flat Dark Earth polymer frame that includes the Slimline beavertail and a slim accessory rail.
At the heart of the build is the Radian RAMJET barrel manufactured from 416R stainless steel and finished to match-grade standards. It is coupled to Radian’s AFTERBURNER micro compensator via the threadless INTRA-LOK interface, providing a compact, compensated setup without external threads.
The sighting system is upgraded with a high-visibility yellow-dot front blade and a black rear square-notch for a crisp sight picture. One Shield Arms S15 15-round steel magazine with witness holes to 15 is included, matching the listed 15+1 capacity.
Markings observed include left-side slide legends “GLOCK,” “43X,” “AUSTRIA,” and “9x19,” with frame marking “MADE IN AUSTRIA / GLOCK, INC., SMYRNA, GA.” A frame serial prefix “CDDZ” is present, and the slide bears an additional alphanumeric code near the ejection port. Overall, this is a recent Slimline MOS configuration that is cleanly customized and ready to admire.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Very minor, superficial scratches and blemishes are present from light handling. The bore exhibits a bright, mirror-like finish.
What’s Included
- Shield Arms S15 15-round steel magazine (for Glock 43X/48)
- Radian RAMJET barrel with AFTERBURNER micro compensator (installed)
- RMSc-pattern optic cut cover plate with mounting screws (installed)
This G43X MOS is a purposefully configured Slimline pistol. The custom-cut slide in gray complements the FDE frame and provides both front and rear cocking serrations along with the RMSc footprint, with the factory-style MOS cover plate installed. The compact profile is preserved while adding the flexibility of a micro-optic footprint.
The Radian RAMJET/AFTERBURNER pairing is a standout element. The match-grade 416R stainless RAMJET barrel and the micro compensator are joined by Radian’s threadless INTRA-LOK interface, yielding a compensated, threadless system that is neatly integrated at the muzzle.
Sight upgrades consist of a high-visibility yellow-dot front blade paired with a black rear square-notch, offering a simple, high-contrast iron sight picture. Capacity is enhanced with the included Shield Arms S15 steel magazine, providing 15+1 in this Slimline format.
Factory markings and origin details are intact: slide legends “GLOCK,” “43X,” “AUSTRIA,” and “9x19,” plus the frame imprint “MADE IN AUSTRIA / GLOCK, INC., SMYRNA, GA.” The Slimline frame features the built-in beavertail and a slim accessory rail. A frame serial prefix “CDDZ” is noted, with a separate alphanumeric mark on the slide near the ejection port.