With the recent escalation in centerfire ammunition prices, the Partner upper receiver for the AR-15 may be one of the smartest, most economical ways to enjoy shooting an AR-style rifle without a second thought about the costs associated with feeding it. The dedicated upper receiver uses removable, interchangeable barrel sleeves in 22 LR and 17 HM2 calibers, allowing the user to fire inexpensive rimfire ammunition at a fraction of the cost of regular .223 Remington rounds. Barrel sleeves are only compatible with the Partner upper receiver. The Partner is a drop-in replacement upper receiver for use on any standard AR-15 lower receiver. Comes with one 25 round magazine.
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
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