AAC PDW 9" 300 Blackout w/URX Rail Upper


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Complete 300 AAC BLACKOUT Upper Receiver Assembly
- 9" Nitrided 1:7: Twist Barrel, threaded 5/8-24
- AAC 51T BLACKOUTâ„¢ Flash Hider
- "Full Auto" BCG
- KAC URX Rail
- Ready to drop onto your AR15/M16/M4 lower! Works with an AR lower with "Mil-Spec" push pin locations.

-The 9" and 12.5" AAC 300BLK Uppers are designed for use with a carbine receiver extension, standard GI Buffer Spring, and an H2 Buffer.
*With barrels shorter than 16", all NFA rules apply!