Herring Model 2024 lever action rifle provides for flexible caliber and magazine reconfiguration at the user-level, without tools to support virtually any shooting profile. Like an AR-15, the Herring Model 2024 utilizes off-the-shelf AR-15 bolts and barrel extensions, which gives it even greater flexibility and allows it to access the huge catalog of calibers and commercially available barrel units for that rifle. The lower receiver has lineage to the ARES/FightLite SCR Sport-Configurable Rifle and it also accepts all AR-15 (STANAG) pattern magazines, including 5, 10, 20, 30, 40, 60 and 100 round AR magazines. They can be reconfigured for virtually any AR caliber from long range wonders like Hornadys 6mm ARC, to short-range bruisers like .450 Bushmaster. Target or small game shooting with .22 LR rimfire via convenient caliber conversion kits will also be possible and HERRING Model 2024 can also be chambered in pistol rounds like 9mm, 10mm, .45 ACP, and 5.728 with potentially great benefits in reduced lever-stroke length.