The Yankee Hill Machine Heavy Duty 3-Lug Adapter (brand part no. YHM-2050) is a quick-attach mounting option machined from 17-4 stainless steel and aluminum, built to add strength and longevity over a standard 3-lug adapter. Yankee Hill Machine designs this fully enclosed assembly to handle heavy use, including full-auto platforms, and builds it HUB compatible with the iconic HK tri-lug interface so it can replace any 1-3/8-24 mount. The HD 3-Lug Adapter swaps directly onto Yankee Hill’s R9 or Nitro N20 suppressors and works on select rifle calibers as well.

Key Specifications

• Threaded 1-3/8-24 tpi, replacing any mount of that pattern.
• Machined mounting interface from 17-4 stainless steel.
• HUB compatible, using the HK tri-lug interface.
• Rated for heavy use, including full-auto platforms.
• Fully enclosed assembly for added durability.
• Compatible with the R9 and Nitro N20 suppressors, plus select rifle calibers.
• Built from aluminum and stainless steel.
• Finished in matte black.

Frequently Asked Questions

Is this adapter rated for full-auto use? Yes, it is built to handle heavy use including full-auto platforms.

What suppressors is this adapter compatible with? Yankee Hill’s R9 and Nitro N20, plus select rifle calibers.

What thread pattern does it replace? Any standard 1-3/8-24 mount.

Buy the Yankee Hill Machine Heavy Duty 3-Lug Adapter

Get a stronger, longer-lasting 3-lug mounting solution built for heavy use. Order it from our Class 3 parts and accessories selection at our Lubbock, Texas gun shop for fast, insured shipping to your FFL.