CMMG 22A1A0FMB BANSHEE MK4 22LR 4.5 TUBE MDBRZ

The CMMG Banshee Mark 4 in .22 LR with 4.5-inch tube and medium bronze finish is a purpose-built rimfire platform designed to deliver affordable, low-recoil shooting while maintaining the ergonomic and modular advantages of the modern AR ecosystem. Built on CMMG's proprietary Banshee action—optimized specifically for .22 LR performance—this model bridges the gap between precision rifle training and casual range shooting, making it an ideal choice for shooters seeking cost-effective practice, training new shooters, or building a dedicated rimfire system.

The platform features full M-LOK accessory slots along the handguard sides and bottom, plus M-LOK between top Picatinny rail sections, enabling flexible mounting of optics, lights, and tactical accessories. CMMG's ZEROED parts package—including ambidextrous safety, ambi mag catch, extended magazine release, ambi charging handle, and drop-in trigger—ensures both left- and right-handed shooters can operate the system intuitively without modification. The EML handguard design prioritizes lightweight handling while maintaining thermal integrity during extended range sessions. At 8.2 pounds fully configured, the Mark 4 delivers shootable balance without excess weight, a critical factor during training blocks or competitive scenarios.

.22 LR rimfire platforms excel in high-volume training applications where ammunition cost and shooter fatigue directly impact training frequency and consistency. The Banshee Mark 4 addresses both factors: .22 LR ammunition typically costs one-third to one-half that of centerfire alternatives, while minimal recoil reduces shooter fatigue, allowing longer, more focused training sessions. This makes the platform particularly valuable for law enforcement transition training, youth marksmanship development, competitive shooters maintaining fundamentals during off-season, and operators seeking a dedicated training rifle that lives within standard AR ergonomics and controls.

CMMG's Banshee line has established recognition within the rimfire community for reliability and feature density at accessible pricing. The Mark 4 generation reflects iterative refinement of the platform's core design. Medium bronze anodizing provides corrosion resistance suitable for field conditions while delivering a subdued aesthetic consistent with modern tactical systems. The 4.5-inch tube length balances velocity retention with portability—shorter than full-length configurations but optimized for .22 LR ballistics across practical shooting distances.