AAC Flange Indexing Direct-Thread Adapter | 5/8-24

The AAC Flange Indexing Direct-Thread Adapter adapts modular suppressors with industry-standard 1-3/8-24 threaded rear sockets to a 5/8-24 direct-thread configuration. The adapter uses a low-profile flange with a square shoulder that indexes against the suppressor’s rear face for positive alignment. Its muzzle-brake style structure is designed to divert gas and unconsumed propellant away from the projectile aperture and to protect the blast chamber baffle from premature erosion. This accessory is intended for use with compatible modular suppressors that employ a 1-3/8-24 threaded rear socket.

Product Specifications

• The manufacturer is Advanced Armament Corp.
• The model name is AAC Flange Indexing Direct-Thread Adapter 5/8-24.
• The adapter converts from a 1-3/8-24 threaded suppressor rear socket to a 5/8-24 direct-thread configuration.
• The flange features a tool-friendly square shoulder that indexes against the suppressor’s rear face.
• The design incorporates a muzzle-brake style structure to divert gas and unconsumed propellant away from the baffle aperture.
• The adapter is intended to be compatible with most suppressors using the industry-standard 1-3/8-24 threaded socket.
• The listed weight is 0.19 (unit not specified in source data).
• The UPC is 850036491545.

This flange-indexing direct-thread adapter provides a compact, low-profile means to convert compatible modular suppressors for direct-thread mounting. Its indexing flange helps ensure consistent orientation, and the muzzle-brake style geometry reduces direct exposure of the blast chamber edge to gas and unburned propellant. Typical applications include range and precision shooting where a direct-thread interface is preferred, and armorer or maintenance use when converting or replacing suppressor mounts. The adapter is a straightforward parts-level solution for owners of compatible AAC modular suppressors who need a reliable method to change mounting configurations.