CMMG: Banshee Mk4 Pistol, 5.7x28mm, 5" Armor Black

(You save $70.95)
(No reviews yet) Write a Review

What many might consider the all-star of personal defense weapon calibers, 5.7x28mm has cemented itself as a greatly effective round with less recoil than 5.56mm at closer ranges. With just a 5√ì barrel this ultra-compact BANSHEE¬™ will fit almost anywhere you need it. If you√ïre not fond of pistol magazine-fed ARs don√ït worry, this BANSHEE is built on the Mk4 √ê AR15 platform which uses a standard AR15 lower receiver and CMmG's new and improved 5.7x28mm AR conversion mags. The BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPBRACE® to the stylized receivers and EML™ handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. With full-length M-LOK® slots on both sides and the bottom of the handguard as well as M-LOK between the top Picatinny rail sections, you’ll always have enough space for those must-have accessories.

Originally developed for the .45 ACP MkG platform, CMMG adapted their Radial Delayed Blowback system across the pistol caliber lineup to create pistols and rifles with a softer recoil impulse and reduced bolt weight compared to traditional straight blowback systems.



  • ZEROED Pistol Grip

  • ZEROED Trigger Guard
  • ZEROED 60°/90° Ambi Safety
  • ZEROED AR15 Ambi Charging Handle
  • ZEROED Ambi Mag Catch
  • ZEROED Extended Mag Release Button
  • ZEROED AR15 Bolt Catch
  • ZEROED AR15 Polymer Dust Cover
  • ZEROED Linear Compensator 5.56mm



  • Caliber: 5.7X28MM
  • Barrel Length: 5"
  • Twist Rate: 1-9"
  • Thread Pitch: 1/2x28
  • Gas System: Radial Delayed Blowback
  • Weight: 5 lbs
  • Length: 23.7”
5 inch