CMMG Banshee 300 Mk4 .22LR Upper Group Kit, 4.5" Barrel, (3) 25-rd. Magazines

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Item is on backorder. Estimated availability: 9/27/2021
Note: Your credit card will not be charged until the backordered item ships. Estimated availability subject to change.
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • .22LR
  • 4.5" 4140 chrome moly steel barrel with 1/2x28 thread
  • Stainless .22LR bolt carrier group
  • Forged 7075-T6 aluminum M4-type upper
  • RML4 M-LOK® handguard
  • Designed to work with standard mil-spec AR-15 lowers
  • Includes (3) 25-rd. conversion magazines
  • Made in USA
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The BansheeTM 300 Mk4 Upper Group Kit fits on most standard AR-15 lowers to create a premium .22LR AR pistol. The Banshee 300 Upper Kit comes complete with a 4.5" stainless steel barrel and CMMG's own stainless .22LR bolt carrier group.

The RML4 4" M-LOK handguard accepts any number of modern accessories, and the full-length Picatinny top rail allows for versatile optics placement. The upper itself is a standard forged 7075-T6 M4-style upper, but comes equipped with CMMG's oversized ambidextrous charging handle for easy charging. Completing the package are (3) 25-rd. AR conversion magazines made specifically for the .22LR round, giving you plenty of firepower.

  • 4.5" 4140 chrome moly steel barrel with 1/2x28 thread
  • KAK slim flash can
  • Stainless .22LR bolt carrier group
  • Forged 7075-T6 aluminum M4-type upper
  • RML4 M-LOK handguard
  • Designed to work with standard mil-spec AR-15 lowers
  • Includes (3) 25-rd. conversion magazines
  • Made in USA

Order today!

Key Specifications

  • Item Number: 721010
  • Caliber: .22LR
  • Action: Semi-automatic
  • Barrel Length: 4.5"
  • Barrel Material: 4140 chrome moly steel
  • Barrel Thread: 1/2x28
  • Barrel Twist: 1:16"
  • Receiver: Forged 7075-T6 M4-type
  • Country of Origin: USA
  • Mfg. Number: 22F5BCA
CMMG Banshee 300 Mk4 .22LR Upper Group Kit, 4.5" Barrel, (3) 25-rd. Magazines
CMMG Banshee 300 Mk4 .22LR Upper Group Kit, 4.5" Barrel, (3) 25-rd. Magazines
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Buyer's Club $539.99 Non-Member $599.99