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Bushmaster ACR

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ACR Basic
Bushmaster ACR
Country of origin

United States


Bushmaster, Remington



Production began


Production ended


Weapon type

Assault Rifle


5.56x45mm NATO


Gas piston, rotating bolt

Overall length

32.6 in. (stock employed) 35.5 in (stock extended)

Barrel length

10.5-18 in.

Weight empty

7.9 lb.


9.8 lb.

Magazine/Cylinder capacity

30 round PMAG

Cyclic rate

800 RPM

Maximum effective range

600 M

Used by

Polish SWW

The Bushmaster Adaptive Combat Rifle or Remington Adaptive Combat Rifle (ACR) is the production name for an updated version of the Masada Adaptive Combat Weapon System. In late January 2008, Bushmaster entered into a licensing agreement with Magpul whereby Bushmaster would take over production, future development and sales of the Masada.[1] It is a patent pending self-loading rifle platform designed by Magpul Industries of Erie, Colorado. The rifle was initially developed over a period of four months, completely independent of government funding. Prototypes were displayed at the 2007 SHOT Show in Orlando, Florida. Originally scheduled for release in the second quarter of 2008, Bushmaster announced on May 16, 2008, that the consumer release would be delayed until Q1 2009, due to a focus 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 displayed to U.S. Army officials during an invitation-only Industry Day on November 13, 2008. The goal of the Industry Day was to review current carbine technology prior to writing formal requirements for a future replacement for the M4 Carbine.[4][5]


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