Sig MCX Rattler Canebrake 300 Blackout Semi-Auto Pistol w/Brace & EOTECH
SOLD FOR: $2,800.00
LSB#: LSB251012JH025
Make: Sig Arms Inc.
Model: MCX Rattler
Serial Number: 63F034008
Year of Manufacture: March 2019
Caliber: .300 AAC Blackout
Action Type: Semi-Automatic, gas piston operated, pistol fed by detachable AR pattern magazines.
Markings: The left side of the slide of the upper receiver is marked “RATTLER”. The left side of the lower receiver is marked “SIG MCX MULTI-CALIBER SIG SAUER INC. / NEWINGTON /NH USA / 63F034008”.
Barrel Length: 5.5”, 12.25″ with the faux suppressor. Threaded 5/8thsx24
Sights / Optics: The top of the pistol has a 15” picatinny rail, mounted to this is a EOTECH holographic sight. The Optic is in Very Good condition with a very clear sight picture. I tested the optic with a new set of batteries. There was some minor corrosion on the negative terminal once this was cleaned off the optic functioned correctly. The pistol also includes a set of offset UTG flip up iron sights.
Stock Configuration & Condition: This braced pistol has a 8.5” forend with M-Lok slots in the 3, 6, and 9 o’clock positions. The pistol grip is a Sig Sauer MCX AR15 pattern grip with serrated front and back straps and textured flanks. The pistol features QD sling cups one on each side of the forend and one on each side of the rear of the lower. The pistol also has a section of picatinny rail integral to the rear of the lower with a mounted foldable, 9” Sig Sauer Pistol Brace. The forend, grip and brace are in Like New condition.
Magazine Quantity and Condition: This pistol includes two 30 Round, Magpul PMAG AR pattern magazines in Like New Condition.
Type of Finish: Two Tone Cerakote
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. The feed ramps are smooth and shiny. The case deflector has no brass markings on it. This pistol appears unfired outside of factory testing. In this writer’s opinion the bore rates 10/10.
Overall Condition: This handgun retains about 99% of its metal finish. The screw heads are sharp and the markings are clear. The pistol shows minor handling. Overall this pistol is in Like New Condition.
Mechanics: The action functions correctly. We did not fire this handgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: This pistol includes the factory box, two magazines, mounted Eotech, cable lock with keys, the offset irons, manual, paperwork, and sticker.
Our Assessment: This SIG MCX Rattler Canebrake in .300 Blackout is a compact, purpose-built platform designed for suppressed-style handling and close-quarters performance. It features the distinctive Canebrake configuration with the factory faux suppressor, giving it the aggressive, integrally suppressed look while maintaining balance and maneuverability. An EOTech holographic sight is mounted up top, perfectly matched to the Rattler’s role with its fast target acquisition. The pistol is equipped with a SIG pistol brace, keeping the overall package compact and controllable while preserving the MCX’s familiar ergonomics.
Chambered in .300 Blackout, the Rattler excels with both subsonic and supersonic loads, and the MCX’s short-stroke gas piston system provides smooth, reliable operation without the drawbacks of a traditional buffer tube. That design allows for a true folding configuration and makes the platform exceptionally versatile. With its Canebrake aesthetics, quality optic, and proven MCX operating system, this Rattler stands out as a modern, high-end pistol that blends cutting-edge engineering with unmistakable visual presence. Please see our high quality photos via the link and best of luck with your bidding!!!-R.L.
