RCBS Expander Decapping Unit 5.56mm/.223 Rem (9802) is a factory replacement assembly for RCBS .223 Remington and 5.56mm sizing dies that combines the expander rod, expander ball, and decapping pin in one unit. This RCBS 9802 expander-decapping unit restores full depriming and neck-expanding function in compatible .223/5.56 bottleneck rifle dies when the original stem, ball, or pin has been bent or worn.
Key Features
- Manufacturer part number: 9802
- Product type: Expander-decapping unit assembly
- Caliber: .223 Remington / 5.56mm
- Components included: Expander rod, expander ball, and decapping pin (preassembled)
- Intended use: Replacement for RCBS .223/5.56 sizing dies and other listed small .22 centerfire cartridges using the same style unit
- Function: De-primes the case and expands the neck to the correct inside diameter during the sizing operation
Special Features
- Factory replacement assembly matches the original RCBS geometry so your die maintains proper neck tension and reliable primer removal.
- Precision-machined expander rod and ball support concentric neck expansion, which helps bullets seat straighter in .223/5.56 cartridges.
- Integrated decapping pin arrives correctly aligned on the stem, reducing setup time and helping avoid off-center contact with case flash holes.
- Designed specifically for .223 Rem/5.56mm and related small .22 centerfire applications in RCBS Group D sizing dies, ensuring proper fit instead of relying on generic components.
Practical Benefits
- The RCBS Expander Decapping Unit 5.56mm/.223 Rem (9802) suits reloaders whose RCBS .223/5.56 sizing dies have a bent stem, worn expander ball, or damaged pin and need a drop-in factory replacement to get back to loading quickly.
- Replacing the entire unit can solve problems such as inconsistent neck tension, rough case withdrawal over the expander, or unreliable depriming caused by a damaged original assembly.
- Keeping at least one 9802 unit on your bench helps ensure that a failed expander-decapping stem does not interrupt high-volume .223/5.56 processing, especially when running large batches of brass or crimped military cases.
| MANUFACTURER | RCBS |