Stock Barrel Sizes
Here are the most common types of stock barrels with their respective sizes. These numbers come from numerous websites and resources from the manufacturers. Unfortunately, not all manufacturers will release their numbers. Click here for aftermarket barrel sizes and paintball sizes.
| Stock Gun Barrels | Lengths | Step? | Advertised Bore | Measured Bore | Bore Description |
| WGP STO Autococker | 12″ | N(a) | (.687d) .690e | N/A | Medium to small |
| WGP ’97, ’98 Autococker | 12″ | N(a) | (.687d) .690e | (.686d) .689e – .691e | Medium to small |
| ACI F-4 Illustrator | 10″ | N | .692 | .689 – .692 | Medium to large |
| ACI Maveric/Hornet | 12″ | N | .692 | .690 – .692 | Medium to large |
| WDP Angel | 12″ | Y | .686 | .686 | Small |
| WDP Angel, pre-’99 | 14″ | Y | .689 | .689 | Medium |
| Tippmann Model ’98 | 8.5″ | N | .691 | N/A | Medium |
| Tippmann Carbine | 8.5″, 14″ | N | .691 | .690 – .693 | Medium |
| Tippmann Pro-lite/Pro-Am | 10.5″ | N | .691 | N/A | Medium |
| Tippmann SL-68II | 11″ | N | .691 | N/A | Medium |
| ICD Bushmaster 2000 | 12″ | N(a) | (.689d) .692e | .690 – .694 | Medium to large |
| ICD Thundercat | 10″ | N | .689 | .688 – .692 | Medium |
| ICD Bobcat | 8″ | N | .691 | N/A | Medium |
| ICD Puma | 10″ | N | .691 | N/A | Medium |
| ICD Desert Fox, Pre-’98 | 10″ | N | .691 | N/A | Medium |
| ICD Desert Fox, 98′ on | 10″ | N | .689 | .690 | Medium |
