Oem heckler and koch quality - Heckler & Koch Threaded Barrel, USP9 Tactical, 9mm

I've been after this barrel for a year now. Thanks to Opticsplanet.com I finally own one. The H&K quality cannot be denied. You will never go wrong with their barrels. The price was excellent,Opticsplanet.com beat everyone, period. I did have to purchase a USPSD guide rod and spring recoil assembly that is made specifically for suppressor use. There is a physical, visual difference between the standard assembly and the SD assembly. NOTE** This assembly works with the 9mm and 40 S&W. It was hard to find and not currently offered on Opticsplanet.com, however they are affordable. I also found the green O ring very easily. It also is not currently available on Opticsplanet.com. Just an FYI, the thread protector is NOT included. the system works and it works well. If you see this barrel on sale at Opticsplanet.com, do yourself a favor and pick it up. Pick up two if you can afford it.