The B & T NATO/A2 HUB Adapter provides military-grade versatility by allowing standard 1.375x24 TPI HUB-compatible silencers to interface seamlessly with NATO-spec A2 birdcage flash hiders. Constructed entirely of heavy-duty stainless steel with a heat-resistant black Cerakote finish, this rugged mounting adapter eliminates the need to thread suppressors directly onto bare barrel threads. It features B & T's battle-proven gate lock and internal ratchet mechanism to deliver an exceptionally solid, redundant, and repeatable lockup that is relied upon by military forces worldwide. Designed to handle both 5.56x45mm and 7.62x51mm calibers, it gives users the freedom to swap a single HUB-threaded suppressor across multiple rifle platforms with total security.