SilencerCo Alpha Direct Thread Mount | M13.5×1 LH

The SilencerCo Alpha Direct Thread Mount provides a direct-thread interface for firearms with M13.5×1 left-hand muzzle threads. It is constructed from stainless steel with a black oxide finish and is intended to attach Alpha-series components and interchange with compatible Octane mounts. The mount’s design includes features for Sig MPX fixed-barrel installations and provides compatibility with Octane 9 and Octane 45 mounting options.

Product Specifications

• The manufacturer is SilencerCo.
• The model is listed as SILENCERCO ALPHA DIRECT THD MT M13.5X1LH.
• The product type is specified as a Thread Mount.
• The thread pattern is M13.5×1 LH.
• The NFA thread pattern is 13.5x1mm LH.
• The material is Stainless Steel.
• The finish is Black Oxide.
• The finish color is Black.
• The listed product weight is 0.1.
• The component is listed as not drilled and tapped.
• The mount is reported as not disassemblable.
• This item is described as a Fixed Barrel Mount for Sig MPX.
• It is also described as an Attachment for Octane 9&45.
• The mount can interchange with Octane mounts.
• The UPC is 817272016673.

Compact and specific in purpose, this direct-thread mount is intended for shooters who need a robust interface between a host firearm and SilencerCo Alpha/Octane-series components. Its stainless construction and black oxide finish make it suitable for repeated field use and integration into platform-specific builds such as Sig MPX fixed-barrel setups or systems using Octane 9/45 attachments. For those outfitting a compatible muzzle thread, this mount provides a straightforward, purpose-built option that prioritizes fit and interchangeability.