M2 Carbine. Registered receiver, registered trigger bar, or trigger group?

[cjsoccer3]

Hi,

I’m trying to understand what is the most desirable M2 carbine option. It seems like folks prefer registered trigger bars while some think registered trigger groups / guards are more durable over registered receivers. Is one preferable to the other and most durable?

Thank you

 

[brenbuilds]

Registered trigger groups are the most robust. They do not bear much mechanical stress, and are dimensionally simple enough to repair. They can also be swapped into different hosts. Registered receivers can crack or stretch, but it typically takes a higher round count before that can happen. Plainfields seem to be more susceptible to it due to metallurgical reasons. Registered Trips can wear, but can be repaired.

 

[Cortland]

I have a registered trigger housing and I like the versatility of having different hosts (not too unlike an HK sear or an AR RDIAS). For mine I have a "regular" M1, a reproduction M1A1, and a tacticalized M1 with a Choate folder and an Ultimak picatinny rail + red dot.

You'd have the same versatility with a registered trip, but I agree that the housing is a more robust registered component that you'll never have to worry about.