Fit for for S1G Sauer 1911 22, GSG 1911 22, 5PK 22 Steel Construction· M9x.75 TPI to 1/2"x28 TPI Adapter· Internal Thread Pitch: M9 (9mm) x 0.75· External Thread Pitch: 1/2" x 28Overall Length: ~1.25"Largest Diameter (with protect0r cap installed): 5/8"1/2x28 thread protect0r include Payment & Shipping: All item shipped from US warehousePayPal is the only payment method accepted through our eBay store.We provide 2 business days shipping service and we usually need 1 business day for handling time. Orders are processed from Monday-Friday Return policyWe provide free returns. You may return most new, unopened items within 30 days of delivery for a full refund.About us We are a professional outdoor sports store in USA,If possible, we would like to do bulk cooperation at much more competitive prices, please contact us. Thanks a Lot"Use the same money to get better quality" or "Get the same quality products at lower prices""Steady quality and great after-sales service" Feedback1.Feedback is very important to us. If you are dissatisfied for any reason, please do not be quick to leave negative or neutral feedback. You can contact us first time and we will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers. 2. If you are satisfied with the product you received, please leave us positive feedback and 5 scores