Side by side with the stock spring, it does not look much different. Does not feel much different. But, the two perform worlds apart. It pushes into battery every time. I purchased this to save wear and tear on the rear rivets of my Yugo and I have no doubt it is up to the task. Wear safety glasses when installing, besides that, this is one of the best upgrades I have made.
It was kind of tough to install, but that was expected. Works great!
Great product, fast shipping!
Definitely extra power as advertised! The recoil spring drives the bolt home into battery every time. Keep a pair of vise grips handy to keep the spring compressed when you install it.
It really doesn't get much simpler than this - this is an easy to do, cheap upgrade for your AK rifle. If your rifle is slamming its' rear trunnion, this will help alleviate that issue. If it isn't and you're like me and just want a better spring, this will help you there, too. Add to it that Supplying Patriots is a super fast shipper - a win all around.