JL Billet RXM Reaper Compact 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 Slides
- 17 Length Slide will fit with a barrel with a G19 locking block pattern. (A any gen 5 17 barrel will work)
- 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
- Fits up to 1.4" Suppressor with shroud off.
SPECS
- Length folded: 9.675”
- Length unfolded:18.06”
- Unfolded Width: 1.01”
- Folded Width: 1.65”
- Height: 6.05”
- Built Chassis Weight: 2lb
- Stripped Chassis Weight: 15.01 oz
- Material: 7075 aluminum (anodized black)
Compatible Accessories
- Streamlight TLR-7A
Streamlight TRL-7 sub
Streamlight TLR-8
Streamlight TLR-3
SureFire XSC
Olight PLX
Does NOT fit TLR1 or X300
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.
Reaper Accessories
Add the Compact RXM Reaper holster, Reaper chassis stocks and Reaper replacement parts. Need a full size grip? See the RXM Reaper FS.
15 Reviews Hide Reviews Show Reviews
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Reaper
Excellent machine work. Love everything about it. It is expensive but once you hold it and shoot it, it is worth every penny. Train harder!
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Solid Product
My only real complaint is the hardware. Specifiaclly the ambi mag release. I switched it to the right side to see how i liked it and its stripped and i cant swap it back if i wanted to. The head of the nut is so small and shallow. But overall the reaper is fantastic. It feels super solid, ergos are wonderful, its got just enough chunk to it and it shoots fantastic. I've only got about 200 rounds through it so far but its definitely my new go to bag carry for riding bikes and since ive purchased, it has replaced my mp5 as a truck gun.
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Reaper RXM
Built like a tank! Feels and shoots as if it was built as a complete weapons system. Solid lockup, easy installation, and takes Glock mags. I’ve shot almost all of the PDW chassis systems out there, and this by far is the best. Law enforcement and military units should definitely take a look at this!
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Reaper Rips
Have had a blast with the reaper. Pun intended. Added a Herrington Arms comp and it helped a ton with recoil impulse. Can is next. Keep up the good work.
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rxm chassis
Shot great. I'm much better with this than a pistol alone.
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Fit and finish
As a machinist myself, the fit and finish is spot on. It’s easy to get lazy and make things lose. It take a want to make things fit right in the target.
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JL BILLET RXM REAPER PDW CHASSIS
Great product easy to install. Super fun to shot. They also have the best customer service. Was concerned about getting my order since I live in Virginia. They would respond to my message super fast. Would 100% recommend
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Very good, just a few nitpicks
Build quality and fit and finish are great. The front mag release really needs to be gated, you will unintentionally drop the mag. The texture on the grip looks great but is inadequate with wet hands. The accessory rail needs to be longer, a TLR7 barely fits. An optic mount option in the vein of the old ALG would be very interesting. All that said, no regrets.
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Better than expected
i had shot the p365 flux and knew i wanted to get into something similar. Debated the flux 320, Taurus pdw, but eventually ended up on this. I’d love to see some more promo and people reviewing this, because it’s way better than i would have thought it to be. The build quality is really solid, feels good and weighty, but not so heavy that it’s not easily carry-able in a bag. It has less snap than the 365, but still a snap. It busied me up pretty good with around 250 rounds through it in one session, but this isn’t a “shoot thousands of rounds through it in a day”. It’s an equalizer, it’s a “me versus the bad guy, I now have the bigger stick”. Im not pro shooter, but it instantly gave me tighter groupings. I only used irons at first, but i can imagine it’s even better with a red dot. Super happy with my purchase, and I’ll for sure be recommending it to anyone who’s interested. A great option for those wanting a bag gun, truck gun, or new home defense weapon.
