Description
There are big bore rifles, and then there is the Cadex CDX-50 Tremor. This is the compact 20.6 inch barreled version of the rifle Cadex builds for military and law enforcement teams, and it brings the full punch of .50 BMG into a package you can transport without a truck bed. Fold the reverse folding buttstock over the receiver and the whole rifle shrinks down to roughly 37 inches, with the stock covering the bolt handle to protect it in transit. For a cartridge this size, that kind of portability is rare.
What Makes the CDX-50 Tremor Shoot So Well
The heart of this rifle is a fluted Bartlein match grade barrel with single point-cut rifling and a 1:15 twist, sitting under a mirage control tube that vents barrel heat away from your optic so your sight picture stays clean as you send rounds downrange. The massive stainless action uses a 4-lug bolt with a short 50 degree throw, an oversized extractor, and dual ejectors, so it cycles fast and runs smooth even when dirty. Reviewers have printed groups well under a minute with factory ammo through this exact 20.6 inch configuration, which is remarkable shooting from a shortened fifty.
Built for Real Use, Not Just the Safe
Cadex machines the chassis from 6061-T6 aluminum billets with a non-reflective finish, and this model wears black DLC coated metalwork. The stock adjusts tool free for length of pull, cheek height, and recoil pad position, and the oversized trigger guard and mag release work fine with gloves on. The DX2 Evo trigger is a standout too, switchable between single stage and two stage operation and adjustable from 1.5 to 2.5 pounds. Up front, the three chamber MX1 muzzle brake tames recoil to a level that genuinely surprises people the first time they get behind one.
Feeding the CDX-50 Tremor
Rounds feed from a rugged steel single stack 5-round magazine that locks in with front and rear tabs and seats with a positive click. With one in the chamber you have 5+1 of the biggest shoulder-fired cartridge most of us will ever run, in a rifle accurate enough to make every one of them count.
Key Specifications
- Manufacturer: Cadex Defence
- Model: CDX-50 Tremor
- MPN: CDX50DUAL50206BR20I2J5
- UPC: 842940109562
- Caliber: .50 BMG (12.7x99mm NATO)
- Action: Bolt action, 4-lug bolt with 50 degree throw
- Barrel Length: 20.6"
- Barrel: Bartlein match grade, fluted, threaded muzzle
- Twist Rate: 1:15"
- Muzzle Device: Cadex MX1 muzzle brake
- Capacity: 5+1, detachable steel magazine
- Trigger: DX2 Evo selectable single/two stage, adjustable 1.5 to 2.5 lbs
- Top Rail: Full length 20 MOA Picatinny rail
- Stock: Reverse folding, tool-free adjustable LOP, cheek piece, and recoil pad
- Chassis: 6061-T6 billet aluminum
- Finish: Black DLC
What’s Included
- Cadex CDX-50 Tremor rifle
- One 5-round steel magazine
- MX1 muzzle brake (installed)
- 20 MOA full length top rail
- Owner's manual
- Cable lock
Frequently Asked Questions
How accurate is the Cadex CDX-50 Tremor with the 20.6 inch barrel?
This rifle punches way above what most people expect from a short fifty. Published testing of the 20.6 inch version produced average groups around three quarters MOA with factory Hornady match ammo, with hand loads and skilled shooters printing tighter than that. The Bartlein match barrel and the rigid stainless action are the big reasons why.
Is the recoil on the CDX-50 Tremor manageable?
Yes, far more than the cartridge suggests. The three chamber MX1 muzzle brake, the chassis design, and the adjustable recoil pad work together to bring felt recoil down to something most experienced rifle owners describe as a firm push rather than a punishing hit. Follow-up shots are realistic, which is the whole point of the design.
How compact is the CDX-50 Tremor for transport?
With the reverse folding stock closed, the 20.6 inch barreled Tremor comes in at roughly 37 inches overall. The stock folds over the bolt handle to protect it, and the locking mechanism is rattle free. That makes this one of the easiest .50 BMG rifles to case up and move.
Can I run a suppressor on the CDX-50 Tremor?
The barrel comes threaded and the design is set up to accept either the included MX1 muzzle brake or a suppressor rated for .50 BMG. Just make sure whatever can you choose is specifically built for the pressure and bore size of this cartridge.





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