The Gen-II Pro Series Rifle upper is an evolution of the M4 model, adding an 11.8" free float aluminium forend with 8 position Picatinny rail. All other characteristics remain unvaried: 18.5" heavy match, parkerized barrel, steel bolt, Mil-Spec components. Fully functional with select fire lowers
- Category : Uppers
- Type : Complete Gas Impingement
- Caliber : 22 Long Rifle (LR)
- Sights : None, Optic Ready
- Barrel Length : 18.5"
- Barrel Material : Steel
- Barrel Description : Heavy Contour
- Barrel Finish : Black Parkerized
- Receiver Description : A3 Polymer
- Receiver Finish : Black
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