Sig Sauer MCX Rattler 5.5” 300 Blackout Semi-Auto Pistol w/Brace & Red Dot
SOLD FOR: $1,971.60
WOA#: WY240413KF133
Make: Sig Arms Inc.
Model: MCX Rattler
Serial Number: 63C052381
Year of Manufacture: Modern
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 / 63C052381”. The mounted Red dot is marked “STRIKEFIRE” and has the Vortex Logo.
Barrel Length: 5.5”, 7.5” with the attached muzzle device.
Sights / Optics: The top of the pistol has a 10” picatinny rail, mounted to this is a Vortex Strikefire that can easily be switched between Red or Green dots. The Optic is in Like New condition with a very clear sight picture. The pistol also has flip up, polymer back up iron sights set up to a lower ? co-witness with the red dot.
Stock Configuration & Condition: This braced pistol has a 4” forend with M-Lok slots in the 3, 6, and 9 o’clock positions. On the forend there are two small handstops mounted in the 9 and 6 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, handstops, grip and brace are in Like New condition.
Magazine Quantity and Condition: This pistol includes one 30 Round, Magpul Gen M3 300 blackout AR pattern magazine in Very Good Condition.
Type of Finish: Black
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. In this writer’s opinion the bore rates 9.5/10. The case deflector has no brass markings on it.
Overall Condition: This handgun retains about 99% of its metal finish. The screw heads are sharp and the markings are clear. 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 one Magazine.
Our Assessment: The Sig Sauer MCX Rattler in 300 Blackout with a pistol brace is a compact, highly versatile firearm designed for close-quarters combat and personal defense. This weapon is part of Sig Sauer’s renowned MCX series, which is known for its modularity, reliability, and adaptability to various roles and environments. The MCX Rattler stands out due to its extremely compact design. It features a 5.5-inch barrel, which, combined with the 300 Blackout caliber, provides effective ballistics and stopping power in a very short package. This makes the Rattler an ideal choice for scenarios where space is limited, such as vehicle operations, home defense, or in tight urban environments. One of the key features of the Rattler is its use of the 300 Blackout cartridge. This round is particularly effective in short-barrel firearms due to its ability to maintain substantial energy and velocity, even from shorter barrels. Additionally, the 300 Blackout performs well with subsonic ammunition, which is beneficial when used with a suppressor to minimize noise and muzzle flash. The Rattler also includes Sig Sauer’s innovative pistol brace. This accessory enhances stability and control, especially during rapid fire, without classifying the firearm as a rifle, thus maintaining its classification as a pistol under U.S. law. The pistol brace can be folded, further contributing to the firearm’s compactness and ease of transport. The MCX Rattler incorporates a fully ambidextrous design, featuring controls that can be easily operated by both left- and right-handed shooters. This includes the safety selector and magazine release. This ambidextrous functionality ensures that the Rattler can be effectively used in a variety of tactical situations, regardless of the user’s dominant hand. In terms of build quality, the Rattler is constructed with premium materials and precision engineering, hallmarks of Sig Sauer’s manufacturing process. It features a free-floating M-LOK handguard for attaching accessories, a gas piston operating system for reliable performance under various conditions, and a durable finish to withstand harsh environments. In summary, the Sig Sauer MCX Rattler in 300 Blackout with a pistol brace is a top-tier choice for those needing a compact, powerful, and versatile firearm. Its design is optimized for close-quarters use, and its modularity and ambidextrous controls make it adaptable to a wide range of tactical applications. Please see our photos and best of luck with your bidding!!!-R.L.
