The US Palm CAT4 Storm is a full-length 5.56 NATO AR-15 built around a cold-hammer-forged 16-inch barrel and mid-length gas system for a softer recoil impulse and improved dwell time compared to carbine-length setups. Fully ambidextrous controls — safety selector, magazine release, and bolt catch — operate from either side, making the CAT4 equally capable in either hand. The Magpul DT Carbine stock provides adjustable length of pull and comfortable cheek weld, while the Hurricane muzzle device cuts both flash and muzzle rise. Constructed on 7075 T-6 aluminum receivers with a full-length Picatinny top rail and M-LOK handguard, the CAT4 is ready for optics and accessories directly from the box with a 30-round magazine included.
- Brand: Century Arms
- Model: US Palm CAT4 Storm Rifle
- Caliber: 5.56 NATO
- Capacity: 30 Rds
- Barrel Length: 16.00", Cold-Hammer-Forged
- Action: Semi-Automatic
- Gas System: Mid-Length
| __Action | Semi-Automatic |
| __Caliber | 5.56 NATO |
| __Barrel Length | 16.00" |
| __Optic Footprint | Picatinny Rail |
| __Model | US Palm CAT4 Storm Rifle |
| __Capacity | 30 |