Optimized for semi-automatic rifles, the second-generation JP Semi-Auto Case Gauge guarantees the function of your ammunition. The rule is simple: if it fits the gauge, it will fit even a minimum-depth SAAMI chamber without interference — so you catch out-of-spec cases at the bench, not at the range.
Specially calibrated to ensure reliable function in semi-auto rifles, the gauge gives you a true go/no-go check for reloads and factory ammo alike. It's machined from 416 stainless steel for wear resistance and long service life, holding its reference tolerances far longer than softer aluminum gauges. For anyone reloading .223 Wylde / 5.56 for an AR-pattern rifle, it's a bench essential. Made in the USA.
Highlights
- Gen 2 semi-auto case gauge, optimized for self-loading rifles
- If a case fits the gauge, it fits a minimum-spec SAAMI chamber
- Specially calibrated to ensure reliable semi-auto function
- 416 stainless steel construction — wear-resistant, long-lasting
- Tight reference tolerances for confident go/no-go checks
- For .223 Wylde / 5.56 reloads and factory ammunition
- Made in the USA
Technical Data
| Spec | Detail |
|---|---|
| Manufacturer | JP Enterprises |
| MPN | JPCG-223 |
| Chambering | .223 Wylde / 5.56 |
| Type | Semi-auto case gauge (Gen 2) |
| Material | 416 stainless steel |
| Reference standard | Minimum-spec SAAMI chamber |
| Weight | 0.023 kg |
| Origin | Made in the USA |
| Product Specs | |
| Color | Black |
