The M1911A1 was the standard sidearm of American Forces during WWII. Issued to officers, NCOs and those in positions where a rifle or carbine was not desirable, the pistol quickly became a favored item among Allied troops because of its stopping power. The M1911A1 is seen in various episodes of Band of Brothers, most notably in "Points", where it was seen being used by Capt. Ronald Spiers (Matthew Settle) threatening both the doctor and the drunk American soldier who shot Chuck Grant. Capt. Herbert M. Sobel (David Schwimmer) can be seen running with one in "Currahee". Joe Leibgott (Ross McCall) shoots a German officer in "Points" with a M1911. David Webster (Eion Bailey) threatens a baker with one in "Why We Fight."
Colt New Service Revolver M1917
Floyd "Tab" Talbert (Matthew Leitch) is given a Colt New Service revolver as a gift on June 4th 1944 during the episode "Currahee", he is seen armed with it in the episode "Carentan".
M1A1 Thompson
Also known as the "Tommy gun" the M1A1 Thompson was the standard issue Sub Machine Gun for US Forces in WWII. As such, many of Easy Company's officers and NCOs are shown carrying the Thompson as their standard weapon. Notable figures include Ronald Speirs (Matthew Settle), Harry Welsh (Rick Warden), Lynn "Buck" Compton (Neal McDonough), William "Wild Bill" Guarnere (Frank John Hughes), and Johnny Martin (Dexter Fletcher).
What is interesting is that, if you look at a pic of Speirs in the book "Band of Brothers", he seems to be holding an M1928A1 Thompson.If you look very closely, in "Currahee" in England were Winters squad is behind the bushes (right before the Brit on the bike shows up) when Lipton talks to Winters if you look at his ejection port ( where the empty shells come out you can see the hop-up from an airsoft gun so it is clearly an airsoft Tokyo Marui M1A1 Thompson.
M3A1 "Grease Gun"
The M3A1 "Grease Gun" was the cheap, inexpensive replacement for the Thompson Sub Machine Gun; It is only shown in the hands of Roy Cobb (Craig Heaney) and Sgt. Lipton (Donnie Wahlberg).
M1 Carbine
The M1 Carbine is carried by 2nd Lt. Henry Jones (Colin Hanks) in the episode "The Last Patrol". It is also seen carried by several US soldiers fighting in Okinawa in newsreel footage.
M1A1 Carbine
Originally issued to non-combat personnel or those who needed a compact weapon, the M1 Carbine was never meant to be a front-line weapon, never the less it was ideal for Airborne troops for its small frame and its compactness. The paratrooper version of the M1 has the distinct collapsable buttstock and handgrip. The M1A1 Paratrooper Carbine is shown extensively throughout the series most notably in the hands of Donald Malarkey (Scott Grimes), Carwood Lipton (Donnie Wahlberg), Warren "Skip" Muck (Richard Speight, Jr.), Lt. Norman Dike, George Luz (Rick Gomez), and Capt. Lewis Nixon (Ron Livingston).
M1903A3 Springfield
A paratrooper is seen with an M1903A3 Springfield and it's seen clearly when his finger gets shot off.
M1 Garand
Standard issue rifle of the US military during WWII, many of Easy Company's paratroopers are shown carrying the M1 as their standard weapon. Most notable are Major Richard "Dick" Winters (Damian Lewis), Shifty Powers (Peter Youngblood Hills) and Joseph Liebgott (Ross McCall). The Garand can be seen with and without a bayonet.
The M91 Bazooka was the standard anti-tank rocket for the US military during WWII, excellent against bunkers and buildings though its effectiveness against the more heavily armored German tanks is debatable. General Eisenhower remarked that the atom bomb, jeep, C-47 Sky Train and the Bazooka were the four weapons that won the war. The bazooka was copied by the Germans as the "Panzerschreck" launcher from a M1 Bazooka captured in North Africa. Generally operated by a two man crew (one gunner, one loader) crews quickly figured out that they needed to hit the side, rear or belly armor of armored vehicles, as shown in the episode "Carentan" (the episode also shows how the bazooka rounds would simply deflect off the heavy frontal armor). The bazooka makes notable appearances in the series being used by Charles E. "Chuck" Grant (Nolan Hemmings) in the episode "Replacements" taking out a German machine gun and by Harry Welsh (Rick Warden) in the episode "Carentan" disabling a German StuG III assault gun.
Browning Automatic Rifle
The B.A.R. was the standard Squad Automatic Weapon for U.S. rifle squads in WWII. It is shown twice in the series being used by an unknown Easy Company soldier in the episodes "Cross Roads" and "The Breaking Point".
M1919A4/A6 .30 Caliber Machine Gun
The standard machine gun during WWII, Korea and into Vietnam. The .30 caliber machine gun is shown extensively in the hands of Easy company being used in both the defensive and offensive roles. The A6 variant is seen carried and used by Easy Company paratroopers. It is also shown being mounted on jeeps.
Browning M2HB Heavy Machine Gun
The Browning M2HB heavy machine gun can be seen throughout the series. The weapon is usually mounted on either M4 Sherman tanks (as seen in "Carentan") or on the M8 Greyhound Armored Car as in "Why We Fight". Also making a prominent appearance, especially in "The Last Patrol" is the M51 Quad Mount which, though designed primarily for anti-aircraft use, had a devastating effect on ground targets and was available in either the towed or vehicle mounted versions (designated the M16 Quad Mount).
Mk II hand grenade
Paratroopers are seen piling MkII hand grenades onto a manmade rockslide in an attempt to blow a hole in the roadblock.
Model 24 Stielhandgranate
In "Day of Days", Lt. Winters is seen using a German Model 24 Stielhandgranate in order to spike an enemy artillery gun.
M18 Smoke Grenade
In "Crossroads", Cpt. Winters is seen throwing a M18 Smoke Grenade for red smoke to signal the charge.
When the Airborne paratroopers watch newsreel footage of the war in Pacific, one of the US soldiers is seen using an M2 Flamethrower.
Karabiner 98k
A main battle rifle for the German forces is the Karabiner 98k. In addition to the German forces, Lt. Winters is seen using it in "Day of Days".
Luger P08
A Standard side arm of German Forces during WWII. It was a prized and coveted souvenir because of its elegant design. Malarkey is seen hunting around for one in "Day of Days". Corporal Hoobler (Peter McCabe) kills a German Officer who has one, and then, later in the episode, it discharges in his pocket, which makes a fatal wound by hitting his femoral artery. It is later given to Sergeant Malarkey (Scott Grimes), who wanted one to bring home to his little brother. The real gun Hoobler found is a Belgain .32 and was not given to Malarkey. The Walther P38 was the standard issue during WWII, the Luger was just left over from WWI and was still used by some Germans as a sidearm.
Walther PP
In the documentary "We Stand Alone Together", the real Maj. Winters displays the Walther PP series pistol he received from a surrendering German officer. Winters discovered the gun had never been fired once, and to this day it remains in his possession, still unused.
MP38/40
The MP38/40 is seen in the hands of German forces, but also used by Sgt. Lipton in "Day of Days".
Sturmgewehr 44
During the siege of Bastogne, German forces are seen using the Sturmgewehr 44.
MG34
MG42
In the mini-series, the MG-42 is seen multiple times, being fired from window openings in towns, and in stand-offs with the German armoured vehicles in the advance into France. Most notably, the mini-series did not fail to demonstrate or imply the demoralizing effect of the gun on U.S. troops, and this is a notable achievement for the film-makers, who added this realistic view, which before, had never been seen in such vivid detail in any previous war-film, barring of course, documentaries with actual war-time footage.