The Griffin Armament Griffin 3 Lug Adapter 1/2x28 is a purpose-built mounting solution for shooters who run 3-lug compatible suppressors and need a precise, repeatable interface on a 1/2x28 threaded barrel. Machined from durable 17-4 stainless steel and finished in a matte black Melonite QPQ treatment, this adapter is designed to deliver long-term reliability while maintaining clean lines and a compact profile on the muzzle.

This HK-pattern 3-lug adapter allows you to quickly attach and remove any standard 3-lug silencer or Griffin 3-lug interface assembly, making it well suited for range use, training, and general shooting where easy suppressor changes are important. The 1/2x28 thread pitch supports common 9mm Luger hosts and other compatible platforms, giving you a straightforward way to expand your suppressor setup without changing barrels. Backed by Griffin Armament’s reputation for thoughtful design and careful manufacturing, it offers a refined, dependable mounting option for modern suppressed firearms.

Key Features:

• Manufacturer: Griffin Armament
• Model: 3 Lug Adapter 1/2x28 (3L1228)
• Caliber: 9mm Luger
• Product Type: Suppressor Mounting Adapter
• Thread Specification: 1/2x28
• Platform: HK-Pattern 3-Lug
• Material: 17-4 Stainless Steel
• Finish Color: Matte Black Melonite QPQ
• Length: 1.43"