JL Billet P365 Reaper PDW Chassis

JL Billet

$479.95
(2 reviews) Write a Review
SKU:
JLB-365-RPR
Weight:
1.50 LBS
Shipping:
Calculated at Checkout
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JL Billet P365 Reaper Chassis

 

The JL Billet P365 Reaper Chassis transforms your existing P365 fire control unit 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 42 rounds using two 21-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 P365 FCU and slide into a compact PDW-style platform 

  • Manual deployable brace for added control and accuracy

  • Precision-machined from aircraft-grade aluminum 

  • Compact design optimized for personal defense 

  • Removable Blast Shroud with bottom picatinny

  • Dual magazine system with ambidextrous release

  • Holds up to 42 rounds (2×21-round magazines)

  • Quick Disconnect Single Point Sling Mount

  • Shoot with brace open or closed

 

 Disclaimer:

JL Billet assumes no responsibility for improper installation, misuse, or damage resulting from incorrect assembly. Ensure all components are installed correctly and in compliance with all applicable laws and regulations. We do not recommend using the P365 Reaper chassis with compensated slides.

 

 

2 Reviews Hide Reviews Show Reviews

  • 4
    Reaper 365

    Posted by Scott Sutherland on 6th May 2026

    Really solid chassis, the slide release if you have anything other than a base 365 will require some modification, this should have been addressed in the design. Would be nice if they add some accessories like a stock or longer brace arm if someone wants to form 1 theirs. Also would be nice to have an option for a barrel shroud that has piccatinny on top. Overall a very solid chassis that is a pleasure to shoot, big upgrade over raider 365 UL its a side grade to the aluminum chassis raider with its biggest advantage being accessory support. Well worth the price imo and cant wait to get ahold of a RXM. I do plan on taking my fiber laser and adding some texture or design to the front magazine holder as I think leaving it plain is a miss and takes away from the chassis.

  • 5
    P365 reaper

    Posted by Mike zingali on 29th Apr 2026

    The JL Billet Reaper Chassis for Sig P365 is seriously impressive. The machining quality is top-tier—everything is clean, precise, and fits exactly how it should with zero slop. You can tell a lot of attention went into the details, from the edges to the finish. It installs easily and completely changes the feel of the P365 in the hand. Solid upgrade all around.

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