Description
Looking to build a compact 5.7×28 AR, or wanting something different for the range? The CMMG Banshee 200 MK57 upper receiver delivers a solid platform in a smaller package. Itβs a good option for those building pistol-caliber carbines or shorter rifles.
CMMG Banshee 200 MK57 Upper Details
This upper features a forged 7075-T6 aluminum receiver and a threaded 8-inch 4140 chromoly steel barrel. The CMMG RML7 M-LOK handguard provides plenty of mounting points for accessories like lights, lasers, and foregrips. It ships with a CMMG Mil-Spec charging handle.
Specs
- Brand: CMMG
- Caliber: 5.7x28mm
- Model: Banshee 200 MK57
- Barrel Length: 8 inches
- Overall Length: 17.30 inches
- Receiver Material: 7075-T6 Aluminum
- Barrel Material: 4140 Chromoly Steel
- Receiver Finish: Black Hard Coat Anodized
- Handguard: 7-inch CMMG RML M-LOK
- Handguard Finish: Black Hard Coat Anodized
- Muzzle Thread: 1/2β-28 tpi
- Barrel Twist: 1:9β
- Weight: 2.15 lbs
- Sights: None (Optic Ready)
- Muzzle Device: CMMG SV Brake
The 5.7×28 cartridge is becoming popular for its flat trajectory and manageable recoil, making it suitable for target shooting and potentially home defense β although Ohio laws should always be followed. The Banshee 200 platform offers a different experience than traditional AR-15 builds and can be a fun project for experienced AR builders.
Please Note: Firearms laws vary. It is your responsibility to know and comply with all federal, state, and local laws when purchasing and owning firearms.
FFL Transfer & Shipping: We ship firearms to licensed dealers within Ohio. All firearms must be shipped to a valid FFL holder. We also offer FFL transfer services if you are purchasing a firearm from another dealer and need it shipped to our store. Contact us for details on FFL transfer fees and procedures.




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