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Upper Receivers & Conversion Kits RRA CMPLT MID A4 UPR 450BM 16" 5RD image 1
Upper Receivers & Conversion Kits RRA CMPLT MID A4 UPR 450BM 16" 5RD image 1

RRA CMPLT MID A4 UPR 450BM 16" 5RD

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Description

Rock River Arms A4 mid-length upper comes chambered in .450 Bushmaster with a 16" chrome moly 1/24 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (5/8-32 thread). This is a complete upper with bolt carrier group, charging handle assembly and a 5 round magazine.
  • .450 Bushmaster
  • 16 Inch Chrome Moly, 1:24 Twist
  • RRA Operator Brake, 5/8-32 Thread
  • Low Profile Gas Block, Mid-Length Gas System
  • RRA 13 Inch Extended Lightweight Free Float Rail
  • Bolt Carrier Group, Charging Handle Assembly
  • (1) Magazine, (5) Rounds

Product Information

ManufacturerRock River Arms
Accessories1 Mag
Barrel Length16"
Caliber450 Bushmaster
Capacity5 Rounds
ColorBlack
FinishAnodized
FitAR-15
Manufacturer Part #450B0592
ModelTactical Carbine
SubcategoryComplete Upper Receivers
TypeUpper

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