AR Triggers 556 = 308?

[powderBurnz]

I have an RRA two-stage trigger that I once had in an ar15. Will this work in my Si Defense 308 lower?

 

[Oodin]

Re: AR Triggers 556 = 308?

Yes. SI Defense's website says they're lowers work with DPMS parts and DPMS uses AR-15 triggers in their 308s.

 

[smokshwn]

Re: AR Triggers 556 = 308?

One caveat is that at times AR15 hammer springs (especially lightened springs) will not light mil surp .308 primers. The parts are the same so if that proves to be the case simply get a heavier hammer spring.

 

[exhogflyer]

Re: AR Triggers 556 = 308?

They will....several manufacturer's ( Geissele comes to mind) even state that they will fit in an AR10 also.

 

[JSTARSZ]

Re: AR Triggers 556 = 308?

When you buy a Geissele you buy it by pin size and then make of trigger not the caliber. So, I believe the majoirty of triggers work by pin size and not caliber.