Griffin Armament GA9QDK | 3-Lug 9mm Coupler

The Griffin Armament GA9QDK 3-lug coupler kit provides a compact, quick-detach interface for many Griffin suppressors and H&K-style 9mm 3-lug barrels. It is designed to add minimal overall length while permitting reliable, repeatable mounting. Typical uses include range training and competition shooting where fast attachment and removal are required.

Product Specifications

• The manufacturer is Griffin Armament.
• The manufacturer’s part number is GA9QDK.
• The model is listed as 3-Lug.
• The caliber is 9mm.
• The material is listed in the product name as 17-4 Stainless Steel.
• The finish is listed as Black.
• The kit provides a QD mounting interface for compatible suppressors.
• The design adds minimal length to the suppressor when installed.
• The adapter requires minimal deflection of the spring bushing for installation in many cases.
• The kit fits H&K standard 9mm 3-lug adapters and Griffin 3-lug adapters.
• The product description lists compatibility with all pistol silencers and Optimus.
• The kit is noted to be compatible with barrels from RCM, Michael’s Machines, and German HK brand where dimensions comply.
• The UPC is 791154081143.
• The subcategory is Suppressor Accessories and the product type is Part.

This coupler kit offers a purpose-built, low-profile solution for shooters who need a quick-detach interface without significantly increasing overall length. Its straightforward design makes it well-suited for range work and competitive stages where reliable, repeatable mounting matters.