This drop in ready upper receiver assembly features a forged aluminum Mil-Sport AR-15 pattern upper receiver with a 16 barrel with 1:24 button cut rifling and black nitride finish chambered for 450 Bushmaster. Completed with a 15
aluminum free floated key-mod rail system over a carbine length low profile DGIS gas system A2 style compensator and black nitride finished bolt carrier group. Fits to any AR-15 pattern lower receiver. - 450 Bushmaster Caliber - 16
Black Nitride Barrel - 7075-T6 Forged Aluminum Upper Receiver - 15
Free Float Key-Mod Rail System - Low Profile Carbine Length Gas System (DGIS) - A2 Style Compensator - Black Nitride Finish Bolt Carrier Group
Specifications
| Barrel Finish | Black Nitride |
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| Barrel Length | 16" |
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| Barrel Length Range | 16" to 16.99" |
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| Caliber | 450 Bushmaster |
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| Handguards | 15" Keymod Rail |
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| Receiver Description | 7075-T6 Aluminum |
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| Receiver Finish | Black Anodized |
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| Sights | None, Optic Ready |
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| Twist | 1:24" |
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| Type | Complete |
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