CMMG Banshee MkG .45 ACP AR Pistol Armor Black - 5"

Manufactured by CMMG
Manufactured by CMMG
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



The CMMG Banshee line of AR pistols come in a wide variety of barrel lengths, calibers, and accessories, so you can find the right one for the job. The Banshee MkG is chambered in .45 ACP and designed to be compatible with the ever-popular Glock magazines. It utilizes a simple radial delayed blowback system which helps to completely negate the sharp recoil of a standard blowback system. It also allows the use of a lighter bolt, so there is less mass slamming back and forth resulting in lighter felt recoil, less parts wear, and better reliability. No need for a gas block or gas tube, this extremely simple and effective set-up is perfect for 45 ACP pistol caliber AR-15s. The 5” barrel is made from 4140 steel and salt bath Nitride finished for extreme durability. The 4” RML handguard features M-LOK slots for attaching accessories and features a top picatinny rail that sits flush with the flat top upper receiver. The CMMG MkG Banshee 45 AR-15 pistol is a compact package that shoots the larger subsonic .45 caliber projectile, perfect for suppressed use.


  • Chambered in .45 ACP
  • 5” barrel with 1:16 twist rate and medium tapered profile
  • Machined from 4140 steel with salt bath Nitride finish
  • Threaded .578-28 with thread protector
  • Simple and reliable radial delayed blowback system
  • CMMG EML 4” M-LOK handguard
  • Forged 7075-T6 upper with Billet 7075-T6 lower
  • Graphite Black Cerakote finish
  • CMMG Zeroed pistol grip
  • Standard Mil-Spec controls and trigger
  • Pistol buffer tube with CMMG RipBrace
  • Includes one 26 round .45 ACP SGM Tactical magazine
  • Integral magazine release and flared magazine well

The upper is forged 7075-T6 while the lower is machined from a billet of 7075-T6 aluminum, allowing CMMG to create a proprietary lower with a custom aesthetic and compatibility with Glock magazines. The lower receiver features an integrated magazine release with a large, textured button and a flared mag-well for quick mag changes. This custom lower receiver also features an integral trigger guard and comes with a CMMG single stage Mil-Spec trigger. Outfitted with a Magpul MOE pistol grip and RipBrace, this pistol is ergonomic and easy to shoot accurately. Compatible with aftermarket AR-15 parts like the charging handle, safety selector, dust cover, and takedown pins, you can add a little flair to your CMMG MkG pistol. Additionally, the 300 series comes with a Graphite Black Cerakote finish.

A leading manufacturer of AR-15 rifles, kits, and accessories, CMMG Inc. was established in 2002. Constantly pushing the edge, CMMG strives to develop and improve bringing you a product lineup that is second to none.
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Barrel Coating
Barrel ContourMedium Taper
Barrel Length5.0
Barrel Material4140 Chrome Moly Steel
Caliber Gauge.45 ACP
Gas System LengthBlowback
Gas System TypeRoller Lock Delayed Blowback
Muzzle DeviceCMMG Linear Compensator
Thread Pattern.578 X 28
Twist Rate1:16

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