Cadex CDX-R7 LA Series .300 PRC Bolt-Action Rifle, 26 Inch Fluted Heavy Barrel, Threaded With Muzzle Brake, Aluminum Chassis, 2023
This Cadex CDX-R7 LA Series chambered in .300 PRC pairs a 26 inch heavy, fluted, threaded barrel with an installed muzzle brake and a 416 stainless steel receiver. Built on the R7 long-action, 4-lug, ~50-degree-throw system with a Remington 700 footprint, it sits in a Cadex aluminum chassis with a long octagonal M-LOK forend and a fully adjustable, skeletonized rear module. It includes a receiver-top Picatinny scope rail and one Accurate-Mag steel 5-round magazine.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows minimal handling marks. The bore presents a bright, clean interior.
What's Included
- Original case
- Cadex Defence owner's manual
- Notebook
- 1x Accurate-Mag steel 5-round detachable box magazine (USA marked)
- ZELNOOX BMLOK-60 M-LOK accessory plate (installed)
The CDX-R7 LA Series action features a 4-lug bolt with an approximate 50-degree throw for short, smooth cycling. This example has a spiral-fluted bolt body and an oversized, diamond-textured bolt knob for positive manipulation. The receiver is 416 stainless steel and marked 'CDX-R7 LA SERIES,' with a visible cocking indicator and a right-side safety lever.
Barrel configuration is purpose-built: a 26 inch heavy-profile tube with longitudinal flutes, factory threading, and an installed muzzle brake. The barrel window is marked '.300 PRC' and 'Mfg: CADEX Inc., CA, 2023.' The bright, mirror-finish bore with sharp rifling aligns with the observed excellent bore condition.
The Cadex aluminum chassis combines a long, octagonal M-LOK forend with a skeletonized, fully adjustable rear module. Tool-less adjustments for cheek height and length of pull are provided, with a rubber buttpad for shoulder interface. Length of pull is set to 13.75 inches.
Topside, a Picatinny scope rail is installed on the receiver. The R7 long-action system follows a Remington 700 footprint and accepts CIP-length AICS-pattern magazines up to 3.850 inches. This rifle includes one Accurate-Mag steel 5-round magazine and is marked 'CDX Precision Rifle' on the lower receiver area.

