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In late JanuaryBushmaster Firearms International entered into a licensing agreement with Magpul whereby Bushmaster would take over production, future development, and sales of the Masada.
Army officials during an invitation-only Industry Day on November 13, Bushmaeter goal of the Industry Day was bushamster review current carbine technology prior to writing formal requirements for a future replacement for the M4 Carbine.
Remington Arms is responsible for the selective fire version of the ACR, while Bushmaster Firearms International is responsible for the semi-automatic only version. The original Magpul Masada’s design represented a combination of several recent rifle designs, incorporating what was considered by its designers to be the manaul features of each in a single, lightweight, modular rifle.
The weapon’s caliber could easily be changed by replacing the bolt head, magazine, and barrel.
The rifle was originally named after the Siege of Masada. Magpul company literature about the rifle states that, “Magpul Industries is not Jewish owned or Israeli backed, however Magpul has always found the story of the Masada as a bold example of defiance”. The rifle was initially developed over a period of five months and was planned to replace the M16 completely independent of government funding.
Originally scheduled for release in the second quarter ofBushmaster announced on May 16,that the consumer release would be delayed until the first quarter ofowing to a focus on military projects.
They made sure that the ACR will be capable to endure certain conditions such as exposure to sand, dirt, mud, and water. Improvements included a magnesium lower receiver, A2-style pistol grip, collapsible but non-foldable stock, carbine length gas system, a new barrel nut which eliminates the quick change barreland a folding charging handle.
These changes made the weapon 1. This version retains the features of the Individual Carbine variant, except that the folding stock was kept and the barrel was shortened to 9.
With the stock folded, it is only It includes the Magpul PRS adjustable stock, a longer The ACR was stated to be available in the second quarter of for military, government, and commercial customers.
It was available in greater quantity tens of thousands in the commercial marketplace in The revelation caused public outcry and dismay of the rifle from a large portion of the firearms community and potential civilian end-users.
Semi-automatic versions are available to the commercial market from Bushmaster, and selective fire versions are available for military and law enforcement under the Remington name. Bushmaster stated that the recall was issued due to “a possible firearms performance issue that may develop with a small number of ACR rifles” and goes on to state that “Bushmaster discovered a design flaw which could result in multiple rounds firing continuously when the trigger is pulled “.
Bushmaster has stated that it will cover all of the costs associated with repairs to recalled rifles. The Remington ACR is a gas operated, selective fire weapon with a modular design. It is only available for the military and law enforcement market in 5. It can change calibers from 5. All of the rifle’s parts can be easily stripped for cleaning and all of its controls are fully ambidextrous. A charging handle can be installed on either side of the receiver and does not reciprocate when the weapon is fired.
Magazine release button is also ambidextrous. Spent case ejection port is located on the right side of the receiver, however it has case deflector, which propels the cases away from left-handed shooters. The rifle can also be configured for handguard, stock type and trigger unit setup.
Among the options for the ACR are various stocks including a fixed adjustable in terms of length of pull and cheek weldfolding adjustable folding and six-position telescopingand sniper stock based on the Magpul PRS stock.
The Remington’s handguard model has a five-sided aluminum handguard that can be manial configured with MIL-STD rail elements, while the Bushmaster’s model is polymer with heat guards and attachable aluminum tri-rail. The magazine conceived for the 5. The rifle is available with four barrel lengths and can be easily converted from a standard assault rifle with a Barrel lengths of the two calibers are exactly bushmsster same.
The Barrels are hammer-forged and hardened with a nitriding process rather than having chrome plated bores as some other rifles. The Bushmaster ACR is gas operated, semi-automatic bushmadter of modular design.
It utilizes an aluminum alloy upper receiver, with polymer pistol grip, trigger, and magazine housing lower receiver unit which is attached to the upper receiver using cross-pins. The rifle features a quick-detachable barrel, with its own short-stroke gas piston attached.
To remove bjshmaster barrel for change, inspection, or maintenancethe operator has to remove the polymer handguards, then swing down the wire lever which is located below the barrel, and then turning the barrel to unlock and pull it forward ,anual out of the receiver.
All barrels are free-floated within the handguard to achieve consistent accuracy. The barrel is like an AR barrel with a resized gas port manuak a thin profile for the piston support. The bolt group also is made as a single unit, with captive return spring and rotary multi-lug bolt which locks directly to the barrel breech.
Bushmaster ACR Operating and Safety Manual
The standard magazine housing, which is suited to accept AR type magazines, has ambidextrous magazine release buttons. The ambidextrous bolt stop release button is located at the front of the trigger guard. Safety lever is also ambidextrous, and charging handle can be installed on either side of the rifle. It can be equipped with various Magpul-made buttstocks, fixed or side-folding, and adjustable for length of pull some also with adjustable cheek rest.
It also has an integral Picatinny rail on the top of the receiver and additional accessory rails can be installed on the forend according to user preferences. The Remington ACR is a selective fire modular assault rifle that is only available for the military and law enforcement market in 5.
The Bushmaster ACR is a modular semi-automatic rifle that is available for the civilian market in 5. From Wikipedia, the free encyclopedia. Not to be confused with Advanced Combat Rifle. Retrieved 31 December Archived from the original on January 30, Retrieved April 26, Archived from the original on manuwl Archived from the original PDF on March 21, Archived from the original PDF on January 4, Archived from the original on 22 January Archived from the original on January 2, Remington firearms and cartridges.
Bushmasyer Arms Military Bushmaster Civilian. Gas-pistonrotating bolt.