
Availability: In Stock
If you're loading ammo for an AR-pattern rifle in .204 Ruger, the RCBS AR Small Base Die Set gives you the two essential tools to safely and consistently produce ammunition that chambers reliably in semiautomatic firearms. The .204 Ruger is a capable varmint and small-game round that demands precision, and this die set is engineered specifically for the tighter chamber tolerances of AR-style receivers—something standard dies may not accommodate dependably.
The set includes a small base sizer die, which compresses cases to dimensions optimized for AR feeding and headspace, and a taper crimp seater die, which seats your bullets while applying a light, controlled crimp that locks the bullet and prevents it from backing out during the cycling and firing of a semiautomatic action. This two-die combination covers the full reload cycle and removes guesswork about whether your finished rounds will function in your rifle.
RCBS has built its reputation on attention to manufacturing detail and material quality, and this die set carries that standard. Whether you're loading for varmint hunting, range sessions, or maintaining a consistent supply for your AR .204, this set is a straightforward, reliable way to produce ammo that performs.
| Caliber | .204 Ruger |
| Die Type | Small Base Sizer Die and Taper Crimp Seater Die |
| Application | Semiautomatic rifles (AR-pattern) |
| Brand | RCBS |
AR-pattern rifles have tighter chamber tolerances than most bolt-action rifles. A small base die sizes cases to dimensions that ensure reliable feeding and chambering in semiautomatic actions, reducing the risk of function issues or difficult extraction.
The set includes a small base sizer die and a taper crimp seater die—the two dies you need to complete the reload process for .204 Ruger ammunition.
While not prohibited, this die set is specifically engineered for semiautomatic rifles. Bolt-action rifles typically work with standard dies and may not benefit from the small base sizing these dies provide.

SKU: 167523937 • Width: 4.5in • Height: 1.75in • Depth: 5.95in • Weight: 1.15oz





Availability: In Stock
If you're loading ammo for an AR-pattern rifle in .204 Ruger, the RCBS AR Small Base Die Set gives you the two essential tools to safely and consistently produce ammunition that chambers reliably in semiautomatic firearms. The .204 Ruger is a capable varmint and small-game round that demands precision, and this die set is engineered specifically for the tighter chamber tolerances of AR-style receivers—something standard dies may not accommodate dependably.
The set includes a small base sizer die, which compresses cases to dimensions optimized for AR feeding and headspace, and a taper crimp seater die, which seats your bullets while applying a light, controlled crimp that locks the bullet and prevents it from backing out during the cycling and firing of a semiautomatic action. This two-die combination covers the full reload cycle and removes guesswork about whether your finished rounds will function in your rifle.
RCBS has built its reputation on attention to manufacturing detail and material quality, and this die set carries that standard. Whether you're loading for varmint hunting, range sessions, or maintaining a consistent supply for your AR .204, this set is a straightforward, reliable way to produce ammo that performs.
| Caliber | .204 Ruger |
| Die Type | Small Base Sizer Die and Taper Crimp Seater Die |
| Application | Semiautomatic rifles (AR-pattern) |
| Brand | RCBS |
AR-pattern rifles have tighter chamber tolerances than most bolt-action rifles. A small base die sizes cases to dimensions that ensure reliable feeding and chambering in semiautomatic actions, reducing the risk of function issues or difficult extraction.
The set includes a small base sizer die and a taper crimp seater die—the two dies you need to complete the reload process for .204 Ruger ammunition.
While not prohibited, this die set is specifically engineered for semiautomatic rifles. Bolt-action rifles typically work with standard dies and may not benefit from the small base sizing these dies provide.
SKU: 167523937 • Width: 4.5in • Height: 1.75in • Depth: 5.95in • Weight: 1.15oz
