ARH seals .. every thing else fabricated in house. Tricks used in the shadows of the typical remain proprietary.
Noth'in like Tricks in the Shadows...
Little bit of fun with some verbiage and MINDS GO WILD. Entry and exit angles of ports, seals tendency to get burnt, nicked or impact damaged etc all have ways to mitigate. Surface finishes, tolerance of fit where it matters is huge. Vibration transfer across parts can also be addressed w/o tars. Like near anything mechanical there are cause & effect traits one can follow to find the weak link/s and sometimes help or correct & sometimes not.As such, effort spent can be effective or be a waste of time and effort. Any given design has limitations to what can realistically be done ( Cost or effort ) and any tuner who knows his way around these mechanical devises quickly or over time realizes this.JMO ...
(On the topic of ordering from Maccarri....his website says to contact him if a spring is a replacement for a kit so I did. Emailed him saying it was to eventually replace a kit I bought in summer of 2018. He responds back with a thanks and that the order was all packaged up to be shipped. I heard back from him less than. 12 hrs after I placed the order.)
I don't. I can and have before, heard the muttered gasps of "blasphemer" from the audience. The sharp intakes of breath from fellow members who mutter how dare he not with that fine German rifle. Even been told in private if that's the way I think I never should have bought one...lol. And yes it's happened because there are members who know whatever gets said in a PM has to stay there and is not allowed to be made public on this forum so they know they can get away with it...lol.I don't because I do now and always have thought that for what I paid to get my hands on the fine pieces of German engineering I do own and I have 5 of them, I should not have to do anything more than clean the barrel, check the stock screws, drop of oil on pivot points and go shoot it. For the record, I do have one rifle that came tuned and to be honest, if I'd thought about it more at the time, I would have asked that it be returned to the factory spring and seal before it was shipped to me.Now let me go grab some popcorn and sit back to enjoy the replies I'll get for what I just typed...lolololololololol