H
- hammer strut
- hammered barrel
- hammered rifling
- hammer forged
- hardball
- Heckler & Koch P7M8
- Heckler & Koch VP series pistols
- Heckler & Koch VP9 (pistol)
- Heckler & Koch VP9 SK (pistol)
- Heckler & Koch VP40 (pistol)
- Henry lever action rifles
- Henry Repeating Arms Company
- Hi Power (Browning pistol)
- high base
- high brass
- high cup
- HK P7M8
- HK VP series pistols
- HK VP9 (pistol)
- HK VP9 SK (pistol)
- HK VP40 (pistol)
- house gun conversion charts