Star Trek: Enterprise

Enterprise (2001-2005)

The following guns were used on the show:

Winchester Pulse Rifle

Seen in the first episode "Broken Bow". Despite the name referring the Winchester rifles, it's really a dressed up Benelli Nova shotgun with aluminum add-ons and a light-up red insertable "plasma cartridge".

Benelli Nova 12 gauge

HK MP5SD

Carried by soldiers of a pre-warp civilization in the season 2 episode The Communicator. [1] The weapon appears to use a G36 buttstock on a MP5SD. They are also equipped with Beta-C magazines.

Heckler & Koch MP5SD3 9x19mm with S-E-F trigger group and Stock Extended.

Walther P38

Seen used by the alien in the Nazi officer's uniform in Season 4 Episode 1: "Stormfront - Part 1" and Season 4 Episode 2: "Stormfront - Part 2". Tucker also took one in hand.

Walther P38 pistol (manufactured at the Mauser Factory) - World War Two dated - 9x19mm

M1911A1

Used by 'gangster' and partisans against the German Soldiers in Season 4 Episode 1: "Stormfront - Part 1" and Season 4 Episode 2: "Stormfront - Part 2".

M1911A1 .45 ACP

Thompson

Don't know which model. I will watch the episodes again to see.

M1928 Thompson .45 ACP

MP-40

Seen in the hands of World War II German soldiers in Season 4 Episode 1: "Stormfront - Part 1" and Season 4 Episode 2: "Stormfront - Part 2"..

MP40 9x19mm

Karabiner 98k

Seen in the hands of World War II German soldiers in Season 4 Episode 1: "Stormfront - Part 1" and Season 4 Episode 2: "Stormfront - Part 2"..

Karabiner 98k - 8mm.