CMMG BANSHEE MK57 5.7x28mm, 8” Barrel, Armor Black – Compact

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CMMG BANSHEE MK57 5.7X28MM 8 ARMOR BLACK

The hunt for your next personal defense weapon is over. Chambered in 5.7x28mm this Mk57 BANSHEE utilizes an 8 barrel to maximize the full potential of the 5.7x28mm round as a close-range personal defense caliber. Built on the Mk57 platform this BANSHEE accepts FN®* Five-seveN®* pattern magazines and features an intuitive oversized mag release. Rest assured that even with the use of pistol mags conventional AR functionality like last round bolt hold open is here to stay in the Mk57. – Platform Mk57 – Caliber 5.7x28mm – Operating System Radial Delayed Blowback – Barrel Length 8 – Barrel Twist 1:9 – Barrel Contour MT – Barrel Material 4140CM SBN – Barrel Twist 1:9 – Muzzle Device CMMG ZEROED Linear Compensator – Muzzle Thread 1/2 x 28 – Upper Receiver Billet 6061 T6 Aluminum – Lower Receiver Mk57 Forged 7075 T6 Aluminum – Hand Guard CMMG EML7 M-LOK – Finish Cerakote Standard – Charging Handle CMMG ZEROED Ambi – Pistol Grip CMMG ZEROED Pistol Grip – Buffer Type Carbine – Receiver Extension CMMG 6 Position Fastback Extension – Stock / Brace CMMG RipBrace – Trigger Type ZEROED Drop-In Single Stage – Trigger Guard Integrated – Safety Selector CMMG ZEROED 60/90 Degree – Magazine 20rd Promag – Weight 5.2 lbs – Length 23.7

$1,611.99

2 in stock

Purchase & earn 1,612 points!

CMMG BANSHEE MK57 5.7x28MM 8″ – Armor Black
Compact. Lightweight. Built for speed. 🔥

If you’re looking for a top-tier PDW that feeds from FN Five-seveN® mags and runs like a dream, the CMMG BANSHEE MK57 in 5.7x28mm is your answer. With an 8” barrel and Armor Black finish, this beast blends modern design with practical performance.

Whether you’re training, defending the homestead, or just enjoying range day with the boys — this BANSHEE delivers.

⚙️ Specs That Matter:

  • Caliber: 5.7x28mm
  • Barrel Length: 8” 4140CM steel
  • Muzzle Device: CMMG SV Brake (1/2×28 threads)
  • Action: Radial Delayed Blowback™
  • Handguard: CMMG RML M-LOK 7”
  • Finish: Armor Black Cerakote
  • Magazine: Accepts FN Five-seveN® mags (20rd mag included)

🛠 Why Tactical Dads Love It:

  • Lightning-fast follow-up shots with minimal recoil
  • Compact enough for home defense, powerful enough for range domination
  • Ambidextrous controls + enhanced ergonomics = ready for any mission
  • Built around CMMG’s legendary reliability and innovation

From truck gun to bedside guardian, the MK57 BANSHEE is the no-compromise choice for dads who demand performance and reliability. Pair it with your FN Five-seveN® and you’re rocking a seamless platform.

💪 Compact. Accurate. Dependable.
🎯 The BANSHEE MK57 is built to perform when it matters most.

👉 Grab yours today — before they disappear from the shelves.

UPC

810148624378
Manufacturer

CMMG
Manufacturer Part Number

57A340FAB

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