Thread: AR15 Federal Primers

Originally Posted by jackson21

RockRiver 2 stage, one of their better ones in a Fred Eichler lower. Guessing around a 3lb break, quite a nice trigger that's why I don't really want to fuck with it if that's not the problem. I do have spare springs lying around, probably Milspec not sure where from, probably doesn't hurt to drop them in and get a bit more strike and see if much difference to trigger.

Not sure if thats a mil spec two peice trigger or a drop in unit but one thing I realised in my Tinmey trigger experiance is nothing comes for free. To get a nice clean 3lb break they can't use a big heavy hammer spring as it increases the friction between the sears and therefore the trigger weight. If you have spares then drop in either a new hammer spring (if two peice) or a new trigger (if one peice drop in) and see if that makes a difference.

As these things are notoriously hard to reproduce when you want to I would load up 100 rounds of ammo with the AR mil spec primers. Fire half with the old trigger and then swap it out for the new one and fire the other 50.

Personally I can live with misfires on the AR primers if the normal ones work reliably and the trigger is nice. Nothing comes for free in this world.