The Bushmaster M4[2] or M4A3[3] is a semi-automatic or select-fire carbine size assault rifle manufactured by Bushmaster Firearms International, modeled on the AR-15. It is one of the Bushmaster XM15 line of rifles and carbines. [4] The M4 Type Carbine is a …

The first Sherman to enter combat with the 76 mm gun in July 1944 was the M4A1, then the M4A2, closely followed by the M4A3. By the end of the war, roughly half the U.S. Army Shermans in Europe had the 76 mm gun.

M4A3(76) – a highly improved variant of the Sherman with production numbers of 1,400 Built by Detroit Arsenal and 525 by Grand Blanc with improved armor, firepower, and a better gun with a higher velocity.

The Bushmaster AR15 M4 is available with either a fixed carry handle (M4A2), or a detachable carry handle and Picatinny rail (M4A3), both with adjustable rear sight. Standard magazines are typically easily available in the 20 and 30 round configuration for the .223.

The main gun was a 75 mm (2.95 in) M3 L/40 model, provided with 90 rounds, at first protected by a Combination Gun Mount M34 and coupled with a fixed secondary cal.30 (7.62 mm) Browning M1919A4 machine gun.

This Marine M4A3 75w tank is heavily modified to deal with the threats specific to the Japanese, the spikes were less about protecting the tank from Japanese soldiers, it was to give standoff space for explosive charges the Japanese would try …

The M4A3 was the preferred US Army vehicle. M4A3 (75) - M4A3 with 75mm M3 gun. M4A3 (105) - M4A3 with 105mm howitzer used for infantry support rather than anti-armour. M4A3E2 Assault Tank - postwar nickname "Jumbo" - extra armour (including 1 inch on front), vertical sided turret, but about 3-4 mph slower.

This is an early production M4A3 76 tank, with a threaded and capped M1A1 gun and a split loaders hatch. This massive photo shows a huge depot filled with various vehicles, including a large number of M4A3 76 tanks.

It's perfect for 3-gun match shooting, home defense, and law enforcement use. It's got great features that people love in their M4's, including an A3 detachable carry handle, a Picatinny rail, six-position telestock, and a chrome-lined bore and chamber for easy cleaning.

Bushmaster M4A3 Tactical Carbine. The Bushmaster 16in M4 Type Carbine is designed for situations requiring a lightweight, rugged firearm. The 16″ Barrel makes it legal without permanently attaching the flash suppressor or brake. The 1 in 9″ twist barrel is chrome lined for maximum longevity and accuracy, as well as ease of maintenance.