$2,800.00
Sig Sauer MCX Rattler Canebrake 300 Blackout w/ holosun open optic
- Price Negotiable?: Yes
- Phone Number: Click to view
- Condition: Like New
- Listing Type: Individual
- City: Orem
- State: Utah
- Zip/Postal Code: 84057
- Local County (e.g., Summit County): UT
- Make/Brand: Sig Sauer
- Model: MCX Rattler Canebrake
- Caliber: 300 Blackout
- Terms: Must agree to terms
- Listed: October 6, 2026 10:53 pm
- Expires: 59 days, 1 hour

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Description
SIG MCX Rattler Canebrake,
Semi-automatic personal defense weapon (PDW) pistol chambered in .300 Blackout, featuring a 5.5-inch carbon steel barrel and an extended SD handguard designed to accommodate a suppressor. Folding brace, which you could easily switch out with a folding or telescoping stock if you want do do the paperwork for a SBR. Also included is Midwest 5.25″ handguard if you want to shorten it up without a suppressor. Currently has the fake suppressor from sig that mimics the size and weight of a suppressor.
It has the HS510C open reflex optic built for carbines, PCCs, and shotguns, featuring a wide viewing window and Multi-Reticle System for fast, adaptable target acquisition.
Its aluminum housing with a titanium hood, combined with Solar Failsafe and Shake Awake, delivers lightweight durability and dependable performance in demanding shooting environments.
→ Red Multi-Reticle System (MRS)
Selectable Red 2 MOA dot, 65 MOA circle, or combined circle-dot reticle for adaptable targeting.
→ Solar Failsafe Technology
Solar panel supplements battery power and automatically adjusts brightness in changing light.
→ Shake Awake Technology
Motion activation powers the optic instantly while preserving battery life when idle.
→ Titanium Protective Hood
Reinforced hood design improves durability and protects the optic from impact.
→ Quick Detach Co-Witness Mount
Integrated QD mount with 1.41 inch dot height for fast installation and iron sight alignment.
→ Open Reflex Sight Window
Large viewing window supports faster sight acquisition and improved situational awareness.



