Description
The Fierce Firearms SACHSBZ is a short action chassis kit finished in a distinctive bronze Cerakote, built for folks who want to drop their barreled action into a purpose-made precision platform. Fierce made its name building some of the lightest, most accurate mountain rifles out there, and this chassis pulls straight from that same lineage. If you've admired the Reaper platform and wanted the chassis on its own, this is your ticket.
What the SACHSBZ Chassis Kit Brings to the Bench
This is a folding chassis design, which is a big deal for anyone hauling a rifle into the backcountry or trying to keep an overall package short for transport. The stock folds to keep things compact, and it runs an adjustable cheekpiece so you can dial in a repeatable cheek weld behind glass. Up front you get a slim M-LOK handguard for hanging a bipod, sling, or light, plus an ARCA rail section that makes tripod work painless. It's the kind of feature set that plays equally well at the range and on the mountain.
Setting Up Your Bronze Fierce Chassis
One of the smarter parts of this kit is that it leans on common AR-15 hardware. The pistol grip attaches much like it does on an AR lower, so you can run your favorite ergo or vertical grip rather than being locked into a proprietary part. That flexibility means you can tune the feel to your hand and shooting style without hunting down oddball components. The action beds into the chassis for a solid, repeatable lockup that keeps your groups honest.
The bronze finish is the standout here, giving your build a warm, earthy look that pairs nicely with carbon and stainless components. If you're chasing a lightweight precision setup that can handle a full day of glassing and still shoot tight, the SACHSBZ is a strong foundation to build on.
Key Specifications
- Manufacturer: Fierce Firearms
- Manufacturer Part Number: SACHSBZ
- UPC: 853418803912
- Product Type: Chassis Kit / Stock System
- Action Fit: Short Action
- Finish: Bronze Cerakote
- Stock Style: Folding with Adjustable Cheekpiece
- Handguard: M-LOK Compatible
- Accessory Rail: ARCA Rail Section
- Grip Compatibility: AR-15 Pattern Pistol Grip
What’s Included
- Fierce Firearms short action chassis with folding stock
- M-LOK handguard/forearm
- Adjustable cheekpiece
- ARCA rail section
Frequently Asked Questions
What does the Fierce SACHSBZ chassis kit fit?
This kit is designed as a short action chassis platform built on Fierce's Reaper-style system. Because chassis fitment can vary by action footprint and bedding, confirm your specific barreled action lines up before ordering. When in doubt, reach out and we can help you verify compatibility.
Does the SACHSBZ use AR-15 grips?
Yes. The pistol grip mounts much like it does on a standard AR-15 lower, attaching with a screw through the grip. That means you can run your preferred ergo or vertical grip instead of being stuck with a single proprietary option.
Is the stock on this Fierce chassis foldable?
It is. The folding stock design keeps the overall package compact for pack-in hunts and easier transport. It also includes an adjustable cheekpiece so you can set a consistent cheek weld behind your optic.
What accessories can I mount to the SACHSBZ chassis?
The M-LOK handguard lets you attach a bipod, sling, light, or other M-LOK accessories directly. There's also an ARCA rail section that makes mounting to a tripod quick and secure, which is handy for long-range glassing and precision work.




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