Sig SRD 9 & 45 Alpha Adapter




This compact adapter is designed to allow you to use common 1.125-28 Alpha threaded mounts & adapters, such as KVP or SilencerCo 3 lug mounts, SilencerCo ASR Alpha, Griffin Cam Lok & EZ Lok 1.125-28 Direct Thread adapters and many others, with the oddball 1.125-24 threads found in the rear of the Sig SRD9 & SRD45.

Material: 17-4 H900 stainless steel
Length: 1.0″
Flange thickness: .55″
Flange diameter: 1.37″
Weight: 1.0 ounces
Internal thread: 1.125-28
External thread: 1.125-24
Minimum inside diameter: .99″

In stock Natural finish or Black adapters ship 1-2 business days. Other color options add up to 10 business days.

Additional information

Weight 6 oz
Dimensions 4 × 4 × 4 in
Moly Resin

Natural, Natural 17-4 H900, Burnt Bronze, Coyote Brown, Tan FDE, SOCOM Black, Grey-Black Colt Flat, OD Green, Flat Brown

One Response

    January 28, 2023
    I bought the Sig SRD 9 & 45 Alpha adapter in Socom black. It arrived promptly and without any problems. It screwed in effortlessly to my suppressor and a rugged tri lug mount screwed in perfectly to the adapter. I am completely satisfied with my purchase and wouldn't hesitate to recommend Ecco machine to anyone.

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Sig SRD 9 & 45 Alpha Adapter
Sig SRD 9 & 45 Alpha Adapter
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