The Adams Arms Proprietary SF-308 Small Frame Upper Receiver is designed as a replacement part for rifles in the Adams Arms Small Frame Series. Precision-machined from aerospace-grade aluminum, this upper offers a lightweight yet durable solution for restoring your existing build. It features a Picatinny top rail with T-markings for consistent accessory placement and is compatible with standard rifle calibers. Built exclusively for the SF-308 Small Frame .308 AR platform, this upper is not cross-compatible with other .308 receivers and should be paired only with Adams Arms Small Frame Series components. Whether you're replacing a damaged upper or keeping a spare on hand, this receiver ensures factory-fit performance and reliable function.
Brand: Adams Arms
Model: Proprietary SF-308 Small Frame Upper Receiver
Platform: SF-308 Small Frame .308 AR
Material: Aerospace-Grade Aluminum
Style: Small Frame Series
Caliber Compatibility: Standard Rifle Calibers
Rail: Picatinny Top Rail
T-Marks: Yes
Compatibility: Only compatible with Adams Arms Small Frame Series parts
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