The CMMG Banshee MK4 Handgun in .338 ARC brings AR-15 familiarity into a punchier, short-barreled package with a 10.5" 4140CM nitride barrel and 1:8 twist that tames heavy-for-caliber bullets for hunting and extended-range pistol work, and the MK4 series is CMMGs refined evolution of the Banshee platform marrying billet 6061 T6 upper aesthetics with a forged 7075 T6 lower for rock-solid durability. Youll appreciate the direct impingement operating system with a pistol gas port and 0.750" non-adjustable gas block that simplifies tuning for the 10.5" length, while the MT contour, CMMG ZEROED Linear Compensator threaded 5/8x24, and EML9 handguard deliver controllable recoil and accessory mounting for optics, lights, or bipods. Fit-and-feel is addressed with the ZEROED ambidextrous charging handle, ZEROED pistol grip and trigger guard, and the RipBrace adds a stable, compact interface for pistol-brace use; the Cerakote midnight bronze finish resists handling wear on a firearm that weighs about 5.6 lbs and measures 26" overall. This handgun requires FFL transfer and suits hunters needing a compact .338 ARC, tactical shooters seeking a hard-hitting AR-style pistol, and range users wanting a durable, purpose-built short-barrel rifle alternative.