ASK AN EXPERTDescription
- This cartridge was designed to provide rifle caliber-like ballistics with less recoil than most pistol caliber carbines
- Aircraft-grade aluminum receivers
- M-Lok free float handguard
- 4140CM, SBN barrel material; Cerakote finish standard
- The quick deploying Ripbrace, the stylized receivers and EML
- This Banshee is built on Cmmg's Mk4 - AR15 platform which uses a standard AR15 lower receiver and Cmmg's improved 5.56x45mm AR conversion mags
- With full-length M-Lok slots on both sides and the bottom of the handguard as well as M-LOK between the top Picatinny rail sections
- Radial Delayed Blowback Operating System
- Mk4 Zeroed parts and accessories - Quality comes standard
- CMMG's Lifetime Quality Guarantee
For those looking to balance carbine-length ballistic performance with the maneuverability of a compact AR pistol this Cmmg Banshee Mk4 5.56mm 12.5" With Ripbrace Long Pistol (55AC20A) chambered in 5.56mm is ready to run. Designed to provide everything you need and more in an AR15, this Banshee is built on the ultra-modular Mk4 platform.
The Banshee series represents the most innovative AR pistols and SBRs available today. From the quick deploying Ripbrace to the stylized receivers and EML handguards, every Banshee is tailor-made to be the personal defense weapon you can always depend on. With full-length M-Lok slots on both sides and the bottom of the handguard as well as M-LOK between the top Picatinny rail sections, you'll always have enough space for those must-have accessories.
Radial Delayed Blowback Operating System. Originally developed for the .45 ACP MkG platform, Cmmg has adapted Cmmg's Radial Delayed Blowback system across our pistol caliber lineup to create pistols and rifles with a softer recoil impulse and reduced bolt weight compared to traditional straight blowback systems.
Mk4 Zeroed parts and accessories - Quality comes standard. The AR15 platform is well known for its capability for customization. Everything from the Ripbrace to the full kit of Zeroed parts and accessories are made here in the USA with quality and attention to detail that is second to none and each Banshee comes equipped with a slew of Zeroed parts standard.
Warranty Information
| Platform | Mk4 |
| Caliber | 5.56x45mm NATO |
| Operating System | Direct Impingement |
| Barrel Twist | 1:7 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Finish | Black Nitride |
| Muzzle Device | Cmmg Zeroed Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | Carbine |
| Gas Block | 0.750" Non-Adjustable |
| Upper Receiver | Billet 6061 T6 Aluminum |
| Lower Receiver | MK4 Forged 7075 T6 Aluminum |
| Hand Guard | Cmmg EML11 M-Lok |
| Finish | Cerakote |
| Charging Handle | Cmmg Zeroed Ambi |
| Pistol Grip | Cmmg Zeroed Pistol Grip |
| Buffer Type | Carbine |
| Receiver Extension | Cmmg 6 Position Fastback Extension |
| Stock / Brace | Cmmg Ripbrace |
| Trigger Type | Zeroed Drop-In Single Stage |
| Trigger Guard | Zeroed Trigger Guard |
| Safety Selector | Cmmg Zeroed 60/90 degree |
| Magazine | Magpul 30rd PMag |
| Barrel Length, in | 12.5" |
| Length, in | 28" |
| Weight, lbs | 5.9 |
