Item #: AAC102129

Advanced Armament 300 AAC Blackout 12.5 Inch Upper Receiver Assembly

Shop Advanced Armament 300 AAC Blackout 12.5 Inch Upper Receiver Assembly at Macks Prairie Wings! Low Prices and Quality Customer Service only from Americas Premier Waterfowl Outfitter!
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  • AAC102129 Product Image
Product Description


Advanced Armament 300 AAC Blackout 12.5 Inch Upper Receiver Assembly is designed for use with a carbine receiver extension, standard GI Buffer Spring and an H2 Buffer. Ready to drop onto your AR15/M16/M4 lower! Works with an AR lower with Mil-Spec push pin locations.

Advanced Armament 300 AAC Blackout 12.5 Inch Upper Receiver Assembly Specifications:

  • 12.5 inch Nitrided 1:7" Twist Barrel, threaded 5/8-24
  • AAC 51T BLACKOUT Flash Hider
  • Full Auto BCG - KAC URX Rail

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List Price:$1,079.99
Savings:17%
$899.99
In Stock
Customer Comments
"We recently moved out of state and can no longer take our frequent trips to Mack's anymore. We miss it, and love it so much we continue to shop with them online, and follow the store on facebook! Love Mack's Prairie Wings! " June 2014
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