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Chiappa Firearms M4-22 Upper Receiver

Sold out everywhere. Upper receiver only. Like new, Never been used just played with. This conversion includes the complete upper and two 28 round magazines. It is compatible with any Mil-Spec AR lower!
Caliber: .22 LR - Capacity: 28rd - Barrel: 16 - Don't let the ever increasing cost of ammunition prevent you from enjoying your favorite AR-15 / M-16.
Chiappa Firearms .22 conversion allows you the opportunity to shoot inexpensive 22 rimfire ammunition for training or just for fun! The M4-22
Rimfire Conversion contains all the parts necessary to change your AR-15 / M-16 from it's existing caliber to the inexpensive .22LR rimfire cartridge. The conversion takes less than a minute and is achieved with no permanent alterations to your firearm. It can be quickly returned to it's original caliber. - The M4-22 Conversion allows semi-auto .22LR fire in ANY mil-spec AR firearm platform. This is a complete upper with a barrel designed specifically for .22 LR ammunition don't risk damaging your centerfire 5.56 barrel with lead bullets or settle for poor performance due to a fast twist rate. The design allows for the use of any Atchinson style conversion magazines to be used.

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