LANGDON LTTPX4FFMNRR | Beretta Px4 9mm | 4″ RMR

The Langdon Tactical Tech LTTPX4FFMNRR modifies the Beretta Px4 platform with an optic-cut slide featuring an RMR footprint and serrations for practical slide manipulation. It retains the Px4’s double/single-action operation and a manual/firing pin block safety, with a 4-inch barrel and a 15+1 magazine capacity in 9mm. This build suits owners who want an optic-ready Px4 without altering core controls or ergonomics.

Recommended optic: a Trijicon RMR (Type 2) fits the RMR footprint and is widely used well under $1,000 for reliable, compact red-dot performance.

Product Specifications

• The manufacturer is listed as LANGDON TACTICAL TECH.
• The model/manufacturer part number is LTTPX4FFMNRR.
• The firearm is identified as a Beretta Px4 platform with Langdon Tactical Tech modification.
• The caliber is 9mm.
• The barrel measures 4 inches for balanced handling.
• The standard magazine capacity is 15 + 1.
• The action operates as Double / Single Action.
• The slide is described as Optic Cut/Serrated.
• The slide includes an RMR footprint for compatible optics.
• The safety features are listed as Firing Pin Block/Manual.
• The frame finish is Black.
• The UPC is 810059260436.
• The product category is Semi Auto Handguns.

Purpose-built for shooters who want a factory-style Px4 with an optic-ready slide, this Langdon Tactical Tech variant keeps the platform’s original handling while enabling modern sighting solutions. It’s a practical choice for everyday carry configurations and for competitive shooters who prefer a compact red-dot setup on a familiar service pistol frame.

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