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Posted: 1/21/2012 8:08:15 PM EDT
| I have noticed on other piston uppers, the bolt does not have a spring on it , like the one that is on the bolt in the Adams. My question is this.... What exact purpose do these springs serve? Do i need it even? Can I run my rifle without the spring on the bolt without causing any damage? It seems like I should be able to get rid of it. |
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On a DI the gas pressure slightly moves the bolt forward, releasing pressure on the locking lugs as the bolt starts to unlock. On a piston system there is no gas pressure to do this, so the little spring is supposed to gently push the bolt forward so the there isnt such a jarring force applied to the locking lugs.
My CMMG has one too. Oh edit for your second question, leave it in there it is serving a purpose. |
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Quoted:
The new complete Adams uppers do not need the spring in the piston rod. This has been discussed in the piston forum. The retro fits still have the spring Both the AA uppers and Retrofits dating back to the original with the carrier key will work fine without either spring. The drive rod spring simply prevents rattling more than anything. As others have said above, might as well use it. |
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