| Platform | Mk4 |
| Caliber | .22 LR |
| Operating System | Traditional Blowback |
| Barrel Length | 4.5 |
| Barrel Twist | 1:16 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:16 |
| Muzzle Device | CMMG ZEROED Flash Hider |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | N/A |
| Gas Block | N/A |
| Upper Receiver | Billet 6061 T6 Aluminum |
| Lower Receiver | Mk4 Forged 7075 T6 Aluminum |
| Hand Guard | CMMG EML4 M-LOK |
| Finish | Cerakote |
| Charging Handle | CMMG ZEROED Ambi .22 LR |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | Carbine |
| Receiver Extension | CMMG 6 Position Fastback w/Ambi Sling Plate |
| Stock / Brace | CMMG RipStock |
| Trigger Type | ZEROED Drop-In |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | CMMG 25rd |
| Weight | 4.3 lbs |
| Length | 20.3" |
Please Allow 15-30 Days To Process Your Order.
State/local restrictions may apply in CA, CO, CT, DE, DC, HI, IL, MD, MA, MI, NJ, NY, or WA. Customers must review our Firearms Shipping Policy prior to ordering.
Firearms with attached pistol brace. Please confirm your FFL is accepting transfers for pistol brace equipped firearms prior to ordering.
SBR, BANSHEE, Mk4, .22 LR, 4.5"
If you’re looking for the smallest CMMG® BANSHEE™ SBR, here it is. At just 4.5” this is the shortest barrel offered on any CMMG AR. Chambered in .22 LR, this BANSHEE SBR is both tons of fun and easier on your wallet during range day.
Available in a range of cerakote finishes, the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPSTOCK®, to the stylized receivers and EML™ handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. New EML4 handguards feature M-LOK® slots at 3, 6, & 9 o’clock positions and a full length picatinny top rail for accessories as well as an integrated handstop.
**All NFA rules apply** All BANSHEE NFA SBRs (short barrel rifles) require additional ATF paperwork & processing. See linked CMMG Resource article for more information.
Mk4 ZEROED parts and accessories – Quality comes standard
The AR15 platform is well known for its capability for customization but picking the right parts doesn’t have to be a nightmare of homework. Every ZEROED™ part and accessory is 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, including:
ZEROED 22LR Ambi Charging Handle
ZEROED Extended Mag Release Button
ZEROED AR15 Polymer Dust Cover
Lifetime Quality Guarantee
We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.
~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.