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Mfg Item #: 91702
Bushmaster's complete upper allows you to add the hard-hitting punch of the 450 Bushmaster to your Bushmaster lower receiver instantly. The AR-type gas operating system drastically reduces recoil for excellent second shot control. This flattop upper includes a 20" heavy barrel with a hard-chrome lined bore and chamber for exceptional durability, and 1:24" twist, optimized for the .450 bullet. The aluminum forearm free-floats the barrel for optimum accuracy. It includes the bolt carrier assembly, and a 5-round 450 Bushmaster magazine.
| Type | Complete Gas Impingement |
|---|---|
| Twist | 1:24" |
| Series | Complete Upper Receiver Assembly |
| Sights | None, Optic Ready |
| Caliber | 450 Bushmaster |
| Handguards | Free-Floating |
| Barrel Finish | Black |
| Barrel Length | 20" |
| Barrel Material | Steel |
| Handguard Finish | Black |
| Barrel Description | Chrome-Lined Heavy |
| Barrel Length Range | 20.00" to 21.99" |
| Receiver Description | Flattop |