![feinwerkbau sport 124 disassembly feinwerkbau sport 124 disassembly](https://www.gunspares.co.uk/images/products/PW050.jpg)
When you start, make sure you install the spring compressor as far back on the Weaver rail as possible, to give yourself the most room for the threaded compressor rod to operate.
![feinwerkbau sport 124 disassembly feinwerkbau sport 124 disassembly](https://s3.amazonaws.com/mgm-content/sites/armslist/uploads/posts/2011/12/22/258184_01_feinwerkbau_124_sport_640.jpg)
Here are the key hints I'll provide to others who may want to attempt this type of repair. I coated the piston and piston seal, as well as the endcap parts with the super moly paste, and coated the outer edges of the mainspring with heavy tar. The airgun grease I purchased was heavy tar, and super moly paste. I also purchased a replacement piston seal, chamber seal, and two types of airgun grease from Air Rifle Headquarters. It attaches to the Weaver rail on the rifle, and uses it as a base to hold a spring compressor in place behind the mainspring housing, allowing the mainspring to either decompress, or compress slowly, enabling the safe removal of the mainspring and associated internal parts. Many folks have fashioned tools of various types to compress/decompress the powerful mainspring, and I had originally intended to follow that same path when I saw the Air Venturi product, which utilizes a unique method. There is no way to replace the piston seal without a spring compressor, and it would be quite dangerous to attempt it without an appropriate tool. I purchased an Air Venturi Rail Lock Airgun Spring Compressor for $95 from Pyramid Air to accomplish the repair. I just want to document a few things that could help others who may find this post through a web search. I had not fired it since then.until Sunday, when my favorite air rifle finally came back to life! 22.Īround 20 to 25 years ago, the piston seal failed on the rifle, and it would no longer shoot. If you are, or are not familiar with the FWB 124/127 series, they are now considered classic spring piston air rifles, highly sought after by airgunners today. It still holds a very special place in my heart. It was my favorite possession for the next 3 years, until I turned 18, and could purchase firearms. I still have the receipts for it, and all the accessories I bought for it. At that time, I saved up and bought a new Feinwerkbau 127. In Hawaii in 1981, when I was 15 years old, I was heavily into airguns.