Enhance the versatility of your firearm accessories with this heavy-duty M9x0.75 to 1/2-28 Thread Adapter, specially designed as a replacement for Sig Sauer 1911 22, GSG 1911 22, 5PK 22, and other models featuring M9x0.75 threads. Crafted from premium high carbon steel with a durable black oxide finish, this adapter ensures long-lasting rust resistance and reliable performance under demanding conditions. Key Features: · Precision Fitment: Specifically engineered to convert M9x0.75 (9mm x 0.75mm) threads to 1/2-28 outer diameter threads, providing seamless compatibility with a wide range of firearm accessories. · Flat Ridges Design: Equipped with flat ridges for easy installation and removal using a wrench (not included), enhancing operational efficiency and user convenience. · Thread Protector Included: Comes with a 1/2-28 thread protector that fully screws in to safeguard the threads when accessories are not attached or during storage, extending the lifespan of your adapter. · Knurl Design on Protector: The thread protector features a fine diamond knurl pattern that not only adds an attractive appearance but also increases friction to prevent slipping during handling. · Durable Construction: Manufactured from high carbon steel with a black oxide coating to resist rust and wear, ensuring exceptional durability and strength for heavy-duty use. Specifications: · Material: High Carbon Steel · Pipe End Thread: M9 (9mm) x 0.75mm · Adapter Outer Diameter Thread: 1/2-28 · Cover Fully Screwed-in Length: Approx. 1.25in (3.2cm) · Maximum Diameter with Protective Cap Installed: Approx. 5/8in (1.59cm) · Fitment: Compatible with Sig Sauer 1911 22, GSG 1911 22, 5PK 22, and other firearms with M9x0.75 threads Package Includes: · 1 x M9x0.75 to 1/2-28 Thread Adapter with Thread Protector This M9x0.75 to 1/2-28 adapter offers a reliable and durable solution for thread conversion needs, ensuring secure attachment and protection of your firearm accessories. Its robust design and protective features make it an essential component for firearm enthusiasts seeking versatility and longevity.