The M4A1 carbine is a fully automatic variant of the basic M4 carbine. The M4A1 was developed in May 1991 and entered service in 1994; starting in 2014 the U.S. Army began upgrading all of its existing M4s to the M4A1 standard. [69] The M4A1 was …

The M1A4 Juggernaut (M1A4 ジャガーノート, Emu-ichi Ē-yon Jagа̄nо̄to?) is the sole Feldreẞ of the Republic of San Magnolia, manufactured by Republic Military Industries.

The M4A1 is a 5.56mmx45mm NATO caliber weapon with a gas operated, rotating bolt action. The carbine is typically fed from 30-round STANAG magazines. A single Picatinny rail is Featured atop the M$A1's M16A3-style falt-top receiver for mounting scopes, sights or a carrying handle.

Colt still makes select-fire M4 and M4A1 carbines too, and offers semi-automatic, civilian legal versions of the M4 carbine with 16-inch barrels. Early on US SOCOM selected the M4 carbine as a potential primary individual weapon for its operators, for its handiness and lighter weight.

The M4/M4A1 5.56mm Carbine is a lightweight, gas operated, air cooled, magazine fed, selective rate, shoulder fired weapon with a collapsible stock.

Mar 26, 2025 · Full-auto capability replaced the three-round burst, giving operators the decisive edge in close-range firefights. But the true stroke of genius lay in the replacement of the fixed carrying handle...

The M4 series 5.56 mm Carbine is a compact version of the M16A2 Rifle and is equipped with a collapsible stock, an adaptor rail system and a backup iron sight. The M4A1 is fully automatic and...

Feb 21, 2017 · The CQBR Upper Receiver is a drop in replacement for the M4A1 standard upper receiver and when installed is known as the Mk18 by type-designation. It was originally intended to replace the 9mm...

Jul 7, 2011 · Equipped with a shorter barrel, collapsible stock, and subsequently accessory rails, it provides soldiers operating in close quarters with improved handling and the capability to rapidly and...

Mar 25, 2025 · The M4A1 Block I’s integrated Picatinny rail system wasn’t just a design feature; it was a blank canvas. It was an open invitation for innovation, and the Special Operations community answered with the Special Operations Peculiar Modification (SOPMOD) kit.