CMMG Banshee 100 Mk10 10mm AR Pistol - 8"

Manufactured by CMMG
SKU: 10A42CB
MPN: 10A42CB
Manufactured by CMMG
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NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers. Due to Covid-19 many are no longer open
•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. This Banshee 100 Mk10 is chambered in 10mm 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 10mm pistol caliber AR-15s. The barrel of the CMMG Banshee 10mm is made from 4140 steel and salt bath Nitride finished for extreme durability. The 7” 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 Mk10 Banshee 100 AR-15 pistol is a compact package that shoots the increasingly popular 10mm ammo.

  • Chambered in 10mm
  • 8” barrel with 1:16 twist rate and medium tapered profile
  • Machined from 4140 steel with salt bath Nitride finish
  • SV muzzle brake with .578-28 threads
  • Simple and reliable delayed blowback system
  • CMMG RML 7” M-LOK handguard
  • Forged 7075-T6 upper with Billet 7075-T6 lower
  • Hardcoat anodized finish
  • A2 pistol grip
  • Standard Mil-Spec controls and trigger
  • Pistol buffer tube
  • Includes one 30 round 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 an A2 pistol grip and a pistol buffer tube with knurled texture, this pistol is lightweight and comfortable to shoot. 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 Mk10 pistol.

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 CoatingSalt Bath Nitride
Barrel ContourMedium Taper
Barrel Length8.0
Barrel LiningSalt Bath Nitride
Barrel Material4140 Chrome Moly Steel
Caliber Gauge10mm Auto
Frame SizeAR Pistol
Gas System TypeRadial Delayed Blowback
Handguard7 in M-LOK Rail
Muzzle DeviceCMMG SV Muzzle Brake
Thread Pattern.578 X 28
Twist Rate1:16

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

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