The CMMG Banshee Mk57 is engineered with precision and quality, featuring a Radial Delayed Blowback operating system and EML handguards with full-length M-LOK slots. This firearm is designed for ease of use, accepting FN Five-seveN pattern magazines and includes a full kit of ZEROED parts.

Ideal for range time and training, the Mk57 offers reliability with its lightweight design and sufficient magazine capacity. CMMG is renowned for its innovation and craftsmanship.

Key Features:
- Manufacturer: CMMG
- Model: Banshee Mk57
- Caliber: 5.7x28mm
- Condition: Factory New
- Action: Semi-Auto
- Finish Color: Black
- Barrel Length: 5"
- Number of Magazines: 1
- Capacity: 20
- Optic Footprint: None
- Unique Features: Radial Delayed Blowback, ZEROED parts
- Night Sights: No
- External Safety: Yes
- Threaded Barrel: Yes
- What's In The Box: 20rd ProMag magazine
- Weight: 4.40 lbs
- Length: 20.90"
- Width: Not specified