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Posted: 4/3/2026 8:37:43 PM EDT
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First off I would like to say that I'm not a Maxim buffer fan boy or anything. When I was buying components for my daughters PCC it was either this or wait and save up for a different system and possibly not have a completed gun under the xmas tree. So the buffer was bought because it was (relatively) cheap, especially compared to other buffer systems geared toward the PCC. Now that I know she can charge the gun by herself and it is both reliable and mitigates recoil, I've decided to keep it. While the buffer is decent, I just think it needed 2 things; 1. needs to be able to short stroke since its going into a PCC steel challenge gun and 2. eliminate some of the back end thud when the buffer bottoms out. This was achieved by adding a wave spring. Wave Spring with some nylon caps that machined out of bar stock. I'm going to have her play around with this set up for a while but I think a longer spring would be better, something like this Attached File Attached File |
Joined:
May 2023
Posts:
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WI, USA
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Is there any mechanism to stop the wave spring from being compressed below working height? I can't see one and am assuming there isn't. I like what you've done, but I have some concerns. First, as that's a 12 lb spring, the carrier is most likely over-compressing the spring and bottoming out at the rear of the cycle. And if that's bottoming out and applying further force to the wave spring after reaching full compression (working height), your wave spring will have a shortened lifetime. Second, the other spring, at 18 lbs, has a working load high enough that may not end up bottoming out, but be careful you don't create too short of a stroke. That's getting pretty long, and again, bottoming out becomes a concern. What kind of round count do you have on the wave spring so far? |
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Originally Posted By PreacherOfGadget: Is there any mechanism to stop the wave spring from being compressed below working height? I can't see one and am assuming there isn't. I like what you've done, but I have some concerns. First, as that's a 12 lb spring, the carrier is most likely over-compressing the spring and bottoming out at the rear of the cycle. And if that's bottoming out and applying further force to the wave spring after reaching full compression (working height), your wave spring will have a shortened lifetime. I have since further played around with different wave springs and found that the 2" with part of the back white spacer cut down had a better recoil impulse. Its still not JP5 good but it is a improvement over the stock configuration. Second, the other spring, at 18 lbs, has a working load high enough that may not end up bottoming out, but be careful you don't create too short of a stroke. That's getting pretty long, and again, bottoming out becomes a concern. The regular spring bottoms out without the wave spring with normal loads. Part of the reason for using a wave spring is to reduce the 'thud' at the when the carrier bottoms out and for that purpose it works quite well. Right now it has just enough that the bolt lock back will still function What kind of round count do you have on the wave spring so far? With the current system we have about 1200 rounds through it and its holding up well. |
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