Cmmg Banshee Fe Mk17 9mm 5 Armor Black

The CMMG Banshee FE Mk17 in 9mm is a short-barreled, magazine-fed modern sporting pistol built for shooters who want crossover versatility with their existing handgun magazines. At just 20.8 inches overall and tipping 4.5 lbs, it's one of the most compact 9mm options in the CMMG Banshee lineup—purpose-built for those seeking a PDW-style platform without the paperwork or tax stamp. The real differentiator is the Mk17 lower receiver: it runs Sig Sauer P320/M17/M18 magazines, meaning you can consolidate your 9mm magazine ecosystem across your carry pistol, duty carbine, and this platform all at once.

Built on CMMG's fixed ejector radial delayed blowback system, the Banshee FE delivers reliable, softer-shooting performance than traditional blowback designs. The 5-inch barrel with a 1:10 twist rate is threaded 1/2x28 and ships with CMMG's ZEROED Linear Comp to tame muzzle rise and blast. You get billet aluminum upper and forged lower receivers finished in Cerakote, an ambidextrous charging handle, and M-LOK mounting slots on the CMMG EML4 handguard for your optics and accessories. The CMMG RipBrace provides a solid cheek weld and control point, while the ZEROED drop-in trigger, selector with 60/90-degree safety, and integrated trigger guard round out a thoughtfully engineered package.

Whether you're a competitive shooter, home defender, or someone who just appreciates compact, modular 9mm platforms, the Banshee FE Mk17 bridges the gap between a duty pistol and a dedicated carbine without forcing you to duplicate your ammunition, magazines, or accessories. It's straightforward, reliable, and built for real use.

Key Features

• 5-inch barrel—compact overall length (20.8") for CQB and PDW roles
• Mk17 platform lower accepts Sig Sauer P320/M17/M18 pattern magazines—consolidate your 9mm mag ecosystem
• Fixed ejector radial delayed blowback system for reduced recoil and smoother shooting
• ZEROED Linear Compensator (1/2x28 thread) to manage muzzle rise
• Billet 6061-T6 aluminum upper and forged 7075-T6 aluminum lower receiver
• Ambidextrous ZEROED charging handle and safety selector (60/90 degree)
• M-LOK compatible CMMG EML4 handguard for optics and accessory mounting
• Drop-in ZEROED single-stage trigger and integrated trigger guard
• CMMG RipBrace and carbine buffer system for control and stability
• Cerakote finish for durability and corrosion resistance

Specifications

Frequently Asked Questions

What magazines does the Banshee FE Mk17 use?

The Mk17 platform lower is designed to use Sig Sauer P320/M17/M18 pattern magazines. This means you can run your existing P320 handgun magazines in this platform, consolidating your magazine library and accessories across multiple firearms.

Is this a short-barrel rifle (SBR) or pistol?

The Banshee FE is a modern sporting pistol with a 5-inch barrel and an overall length of 20.8 inches. It does not ship with a traditional shoulder stock, so it is classified and sold as a pistol. Never attach a traditional rifle stock without appropriate federal licensing and registration.

What's included with the Banshee FE?

The Banshee FE ships with a CMMG RipBrace, CMMG ZEROED Linear Compensator installed on the muzzle, and is configured with CMMG's ZEROED ambi charging handle, ambidextrous safety, and drop-in trigger. You will need to source your own Sig P320 magazines.

What kind of optics and accessories can I mount?

The CMMG EML4 M-LOK handguard provides slots for mounting optics, lights, and other M-LOK compatible accessories. The upper receiver is also compatible with standard Picatinny rail mounts and optics designed for AR-platform firearms.