With the receiver cover off, you can push the recoil guide and guide spring forward until it clears the guide bars in the receiver. When it comes loose at the rear, lift it up and pull it back out of the receiver to remove it. Push the guide rod into the receiver cover and hold it there while you pull up on the rear of the receiver cover. The rear of the guide rod sticks through the rear of the receiver cover. Wiggle both the front and rear of the receiver cover to make sure there is no excessive movement. Remove the magazine, check the chamber and dry fire the rifle. Poorly fitting parts can be found in the new rifle, but only time and use will show wear points, spring problems, and slippage. A rifle that has had a thousand rounds fired through it is much easier to work on than a nearly new rifle. This is also true of the Hungarian AKM, SA 85M, the Chinese 56-S or one of the many Sino-Sovet AK/AKS rifles.Īs we disassemble the rifle, there are several factors to look for that will make a great deal of difference as we go along. As the stamped receiver is the most common, we will use one as our “classroom.” When you are working on machined steel receivers, you will find slight variations from the stamped receivers. Let’s take three MAK 90s and an SA 85M apart to look at some of the problems you might run into and a few improvements that you can make. When you work on a MAK 90, keep this in mind if you are trying to replace or change parts. Many intentional changes, from different springs to varied dimensions of internal parts, were made in the different plants that produced these rifles. We can’t tell you which parts will exchange until you get into specific manufactured lots. While some parts may exchange, the key to working this rifle is recognizing that not all parts will. public, not for battle, each was fitted to function individually.
Some MAK 90 parts will exchange but because the rifle was made strictly for sale to the U.S. While the Russian and other military AK type rifles have battlefield exchangeable parts, the MAK 90 does not. Designed as a military weapon, it is easily disassembled and worked but not necessarily simple. The most common AK rifle copy sold in the United States is the Chinese-made MAK 90.