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Sig Sauer MCX Rattler PCB
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Sig Sauer MCX Rattler PCB
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Sig Sauer MCX Rattler PCB
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Sig Sauer MCX Rattler PCB

Sig Sauer MCX Rattler PCB .300 BLK

over $500.00
3.5
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$2299.99
  • ✓Compact
  • ✓Lightweight
  • ✓Good ergonomics
  • ✗Trouble cycling subsonic ammo without a suppressor
  • ✗Expensive

Editor’s Note: "Designed for <strong>rapid deployment from concealment</strong>, the MCX Rattler packs a punch in the .300 BLK configuration. Coming in at 5.1 pounds empty, sporting a 5.5-inch barrel and folded length of 17 inches, the MCX Rattler is definitely compact enough to be carried anywhere." - Joshua Fox

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Product Details

Caliber
300 AAC Blackout
Action
Semi-Auto
Weight
5.1 lbs
Barrel Length
5.5in
Overall Length
29.3in
Magazine Capacity
30rd

Features

Compact
Lightweight
Good ergonomics
Trouble cycling subsonic ammo without a suppressor
Expensive

By The Numbers

Accuracy
The 5.5-inch barrel on an AR Pistol isn’t designed to be the most accurate gun in your safe. But it can be very accurate under 50 yards with some proper shooting fundamentals.
Reliability
Supersonic ammo works great. We encountered multiple failures when trying to shoot subsonic ammo unsuppressed.
Customization
Most standard AR-15 modifications will work here, just be mindful of vertical grips and stocks since these are considered pistols.
Ergonomics
The brace can be a awkward to shoulder, but ambi controls and a comfortable pistol grip help make the gun feel good in the hand.
Overall
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FINAL VERDICT

"The MCX Rattler is still an absolutely fantastic gun when shooting supersonic ammo. It is small, and concealable in any standard backpack. Not to mention, it packs a punch with a 30-round magazine that can reach out to a couple of hundred yards. Plus, it just looks really cool. Just make sure you pay attention to what ammunition you purchase and feed it if you are not running it suppressed." - Joshua Fox