View Full Version : To ring? or not to ring? ACP O-ring question

06-09-2007, 07:11 AM
Just wanted some feedback on ACP bolts and if you got a ringless one or two ring? or a 3 ring with the top ring removed? so if you have any of these bolts in your mr-1, post away and let us know what you think about it!


Hob Hayward
06-09-2007, 08:07 AM
Get 2 o-rings. I'd say o-rings are always better than no o-rings.

06-09-2007, 12:28 PM
get 2 orings it's a lot better than none

06-09-2007, 02:41 PM
I agree with O-rings ....

Just added a 3rd O-ring to my Billet Delrin bolt. Cut another groove @ 1/8" back from bolt face to better seal the breach :D .... It did just that, gained 25/30 FPS and allowed me to back down pressure even further.

So long as the o-rings are just a "Zero/Zero" fit and do not cause more drag on the cycling of the bolt, it's ALL better in the end :p

06-09-2007, 04:42 PM
go for 2 orings since the third would be up by the detents & may get lots of ware with the detent or may even ware the detents