Adaptive Combat Rifle

Adaptive Combat Rifle
ACR (left) and SCAR (right)
Type Assault rifle
Place of origin 23x15px United States
Production history
Designer Magpul Industries
Designed 2006
Manufacturer Remington Arms, Bushmaster
Weight 3.175 kg

Rate of fire 800-950 RPM
Effective range 300 m
Feed system 30 round removable box
Template:Wikidata image

The Adaptive Combat Rifle (ACR) is a fully automatic assault rifle. It was designed by Magpul Industries of Erie, Colorado. In late January 2008, Bushmaster made a licensing agreement with Magpul. In this agreement, Bushmaster would take over the making, development and sales of the ACR.[1]

The rifle was developed over five months. It was supposed to replace the M16 rifle completely. It was also supposed to do this without money from the government. Prototypes were shown at the 2007 SHOT Show in Orlando, Florida. It was supposed to be released some time in 2008. However, Bushmaster said on May 16, 2008 that the ACR would not be released to the public until 2009. This is because Bushmaster were focusing more on military projects.[2] On November 18, 2008, Bushmaster released a statement saying, "The ACR is being redesigned to be a superior offering to compete for the next generation US Army infantry carbine and subcompact weapon requirement and will be available to select customers in 2009."[3]

The ACR was one of the weapons shown to the U.S. Army during an Industry Day on November 13, 2008. This Industry Day happened so that modern carbines could be looked at before it was decided what the weapon that would replace the M4 Carbine had to be like.[4][5]


The first design is many recent rifle designs combined. Its designers say that it takes the best parts of each and puts them into a light, modular rifle.[6] Some features from the Armalite AR-18, the FN SCAR, the Heckler & Koch G36/XM8, the M16/AR-15, and the M16 can be seen clearly. Experts from Magpul have said many times that depending on how long the barrel is, the number of bullets fired is around 600-800 rounds every minute. (This is an estimate). The weapon's caliber can easily be changed by changing the bolt head, magazine and barrel.


The United States was designing a carbine to replace the M4 carbine.

Bushmaster Firearms, with help from Remington Arms (a sister company) has made many design changes. These were made to meet what the U.S. military needed. The ACR can be bought by both the military and civilians. Bushmaster says that they will soon have kits which can change the caliber of the rifle.[7] It is expected that the ACR will be able to be bought with a choice of: 10.5″, 12.5″, 14.5″, 16″ (commercial), and 18″ barrels. One kind of ACR made by Remington has been shown as part of the Army's Individual Carbine competition.[8]

The magazine for the 5.56mm version of the ACR rifle is called the Magpul PMag. It can hold 30 rounds. Magpul says that it is much more difficult to break or damage than other magazines. The PMag can also fit the rifles in the M16 rifle family.[6]

The ACR was made not to break if it was exposed to things like sand, dirt, mud, and water.

Sale and recall

On October 15, 2010, Bushmaster asked customers for all the ACRs back. They asked all ACR owners to immediately stop using the gun because it was dangerous. They also said to contact customer support. Bushmaster said that they recalled the rifles because they discovered a fault in the design that could mean that many rounds could be fired when the trigger is pulled. Bushmaster said that it would pay for the repairs on the rifles.[9]



  1. Bushmaster press release: Bushmaster and Magpul Team to Bring Advanced Rifle to Market
  2. "Bushmaster ACR Update". Retrieved 2010-03-08.
  3. Bushmaster Industry Forum November 18, 2008 "ACR UPDATE 11/18/2008"
  4. "Army considers options in replacing the M4 - Army News, news from Iraq". Army Times. Retrieved 2010-03-08.
  5. "Military Photos: military images, military pictures, Army, Navy, Air Force, Marines". Military Times. 2007-02-16. Retrieved 2010-03-08.
  6. 6.0 6.1 "MagPul Masada Adaptive Combat Weapon System (ACWS) Makes Its Debut". Defense Review. Retrieved 2010-03-08.
  9. "Bushmaster ACR Recall!".
  10. "SPECIAL OPS SITREP: ACR w Afganistanie - blog SITREP". - Portal Ludzi Akcji.

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