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RSR Stock #: CMMG54A2427
Manufacturer Part #: 54A2427
UPC: 816422028870

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CMMG, Banshee 100, Mk4, Pistol, Semi-automatic, 5.7X28MM, 8" Barrel, Threaded 1/2x28, Anodized Finish, Black, A2 Pistol Grip, CMMG Pistol Receiver Extension, M-LOK RML7 Handguard, 40 Rounds, CMMG Magazine, Ambi Sling Plate


WARNING: This product can expose you to a chemical (or Chemicals)such as lead that is (are) known to the State of California to cause cancer (or birth defects or other reproductive harm). For More information go to


"GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H.  Neither RSR Group, Inc. nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H.  The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components.  For genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit

  • 8 Inch Barrel
  • CMMG RML7 M-LOK Handguard
  • Single Stage Mil-spec Trigger
  • CMMG Pistol Receiver Extension

Product Description

CMMG delivers its lightest and most compact firearms within the BANSHEE line of AR pistols. Don't let these little guys fool you though. There's plenty of firepower in the BANSHEE line. Chambered in 5.7x28mm, this pistol is ready for the range.