AAI XM70
Encyclopedia
The AAI XM70 is an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 assault rifle
Assault rifle
An assault rifle is a selective fire rifle that uses an intermediate cartridge and a detachable magazine. Assault rifles are the standard infantry weapons in most modern armies...

 developed by the AAI Corporation
AAI Corporation
AAI Corporation is an aerospace and defense development and manufacturing firm in Hunt Valley, Maryland, USA. It is formerly a wholly owned subsidiary of United Industrial Corporation, AAI was acquired by Textron in 2007 and currently is an operating unit of Textron Systems Corporation...

 that fires 5.56 mm flechette
Flechette
A flechette is a pointed steel projectile, with a vaned tail for stable flight. The name comes from French , "little arrow" or "dart", and sometimes retains the acute accent in English: fléchette.-Bulk and artillery use:...

 rounds
Bullet
A bullet is a projectile propelled by a firearm, sling, or air gun. Bullets do not normally contain explosives, but damage the intended target by impact and penetration...

. The XM70 was considered as an entry into the 1970s Future Rifle Program to replace the long serving M16 rifle
M16 rifle
The M16 is the United States military designation for the AR-15 rifle adapted for both semi-automatic and full-automatic fire. Colt purchased the rights to the AR-15 from ArmaLite, and currently uses that designation only for semi-automatic versions of the rifle. The M16 fires the 5.56×45mm NATO...

; however, due to the high cost of manufacture, the AAI SBR
AAI SBR
The AAI Serial Bullet Rifle was a US made assault rifle, developed by the AAI Corporation as a possible entrant into the 1970s Future Rifle Program to replace the long serving M16 rifle...

was chosen instead.
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