JL Billet’s RXM Reaper Brings PDW Capability to RXM Platform
JL Billet continues to push into the PDW space with the release of the RXM Reaper Chassis. Introduced in early April, JL introduced the P365 Reaper which transforms your micro-compact into a PDW platform. The RXM Reaper is designed to transform an existing RXM fire control insert (FCI) pistol from a standard compact configuration into a more capable, PDW-style platform.
From Pistol to PDW
At its core, the RXM Reaper Chassis is about enhancing capability without sacrificing portability. Machined from a solid block of 7075-T6 aluminum, the chassis emphasizes durability while maintaining a lightweight and streamlined footprint.
The result is a system built to improve stability, control, and overall shootability. By adding a brace, expanded capacity, and a more structured platform, the Reaper allows users to push their existing setup further into the PDW category without excessive bulk or complexity.
Product Description
JL Billet RXM Reaper Chassis


The JL Billet RXM Reaper Chassis transforms your existing RXM fire control insert and slide into a lightweight, compact personal defense weapon. Designed for shooters who demand enhanced control, increased capacity, and a refined billet-aluminum platform, the Reaper delivers performance without unnecessary bulk.
Machined from high-strength aircraft-grade aluminum, the Reaper offers exceptional durability while maintaining a lightweight profile ideal for defensive use. Its compact chassis design provides improved stability and ergonomics, allowing for faster follow-up shots and greater confidence under pressure.
The Reaper is capable of holding up to 34 rounds using two 17-round magazines, giving you extended capacity in a streamlined package.
Does not include slide, trigger, lights, optics, or any additional accessories. This is the stripped chassis only.
Key Features

- Converts your RXM FCI and slide into a compact PDW-style platform
- Compatible with GEN 3 GLOCK 19 and 17 slides and magazines
- Manual deployable brace for added accuracy and stability
- Removable Blast Shroud with bottom Picatinny
- Manual Cross Bar Safety
- Precision-machined from aircraft-grade aluminum
- Compact design optimized for personal defense
- Dual magazine system with ambidextrous release
- Holds up to 34 rounds (2×17-round magazines)
- Quick disconnect single-point sling mount
- Shoot with brace open or closed
Price & Availability
With the RXM Reaper Chassis, JL Billet is offering a modular solution for users looking to expand the role of their platform. It bridges the gap between compact pistol and PDW, focusing on control, capacity, and adaptability in a compact footprint.
The RXM Reaper Chassis is available now with an MSRP of $459.99. For more information, head over to JL Billet’s website or check with authorized dealers to explore the platform further.
