We think the standard A3 upper receiver is pretty
good, and hard to improve on (cosmetics don't count).
For URF-F (Upper Receiver, FCD, Forged), there is but a single functional change we wanted which differs from the TDP spec forged upper receiver. Specifically, URF-F has relief cuts/chamfers on the area above the charging handle (before 1913 rails start) for better accessibility of a
flip up BUIS's sight stalk / flip up element. In 2023, we also added another bevel in the rear.
NOTE: there is an overlap of the Centurion Arms made URF-F and 2023 late summer version. The major difference is the presence of anti-rotation pin hole for the latest URF-F for HDSI, SOLGW and ZEV handguards. Centurion Arms made URF-F uppers do not have the pin hole.
URF-F is based on TDP spec forged upper receiver, it's made and modified for Forward Controls. Type 3 hard
coated in black. Like TDP spec A3 upper receivers, URF-F can accommodate a forward assist, but does not come installed with one.
Features
Machined from aluminum Forgings 7075-T6
Hardcoat Anodized per MIL-A-8625F, Type III, Class 2
M16/Auto Pocket
URF-F does not require thermal fit, and dos not have rail numbers (otherwise known as T numbers) on top, two features we don't deem useful.
Like all FCD products, URF-F is proudly made in USA.
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