- H&R M-4 Survival Gun
- H&R Ultra Varmint
- HAC-7 (Holloway Arms Co)
- HAFDASA C-2 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- HAFDASA C-4 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- HAFDASA Z-4 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- Halcon M-1943 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- Halcon M-1946 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- Halcon M-57 (Argentina - SMG - 9x19mm Luger / .45 ACP)
- Halcon ML-57 (Argentina - SMG - 9x19mm Luger)
- Halcon ML-63 (Argentina - SMG - 9x19mm Luger)
- Hakim Rifle (7.92x57mm Mauser)
- Hammerli 280
- Harris Gun Works M-86
- Harris Gun Works M-92
- Harris Gun Works M-96
- Hastings 9 mm rifle
- HDH Revolver
- Helenius 12.7 mm anti-material rifle
- Helenius 20 mm anti-material rifle
- Helwan H9 Brigadier
- Hesse Arms 50 BMG Rifle
- Hi Standard Supermatic Citation Model 107 Military
- High Standard 10B 12ga Police shotgun
- High Standard Derringer
- Hi-Point 995 Karbin
- HK 4
- HK 11
- HK 13
- HK 21
- HK 23
- HK 32
- HK 33
- HK 36 (4.6x36mm Prototype)
- HK 41 (Reservist Rifle)
- HK 43
- HK 51 (Vollmer Conversion)
- HK 53
- HK 53 MICV
- HK 53A2
- HK 53A3
- HK 53B (Vollmer Conversion)
- HK 53K (Vollmer Conversion)
- HK 54
- HK 69 (40mm Pelancar Bom tangan)
- HK 69A1 (40mm Pelancar Bom tangan)
- HK 73
- HK 79 (40mm Pelancar Bom tangan)
- HK 81
- HK 91
- HK 93
- HK 94
- HK 270
- HK 300
- HK 416 (formerly HKM4)
- HK 502
- HK 512
- HK 630
- HK 770
- HK 911
- HK 940
- HK ACR (G11 Variant)
- HK AG36 (40mm Pelancar Bom tangan)
- HK BASR
- HK/Benelli M1 Super 90
- HK/Benelli M3 Super 90
- HK/Benelli M1014/M4 Super 90 Combat Shotgun
- HK CAWS
- HK EFL
- HK/FABARM FP6
- HK G3
- HK G8
- HK G11
- HK G36
- HK G41
- HK GMG
- HK GMW
- HK GR2
- HK GR3
- HK GR6
- HK GR9
- HK MG4 (formerly HK MG43)
- HK MK23 (also known as Mark 23 Mod 0 or HK SOCOM)
- HK MP5 (Maschinenpistole 5)
- HK MP7A1-PDW (Personal Defence Weapon)
- HK MP2000
- HK MSG3
- HK MSG90
- HK XM29 OICW (Objective Individual Combat Weapon)
- HK P2A1
- HK P7
- HK P8
- HK P9
- HK P10
- HK P11 (Underwater Pistol)
- HK P12
- HK P20
- HK P46 (formerly UCP-Universal Combat Pistol)
- HK P80
- HK P2000
- HK PSG1
- HK SL6
- HK SL7
- HK SL8
- HK SL9SD
- HK SLB2000
- HK SMG I
- HK SMG II
- HK SP89
- HK SR9
- HK UMP (Universal Maschinenpistole)
- HK USC
- HK USP (Universal Self-loading Pistol)
- HK VP70 (Volks Pistole 70)
- HK WSG2000
- HK XM8
- Hopkins & Allen Pocket Revolver
- Hopkins & Allen XL No. 4
- Hopkins & Allen XL No. 5
- Hotchkiss Universal
- Howa Type 64
- Howa Type 89
- Howa M1500
- Howa M3000
- Howa AR18
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