Anyone own a registered HK trigger box?

Machineguntony

New member
I added an HK trigger box to my collection. Not the sear pack, but the registered trigger box where the 'skeleton', that houses the trigger pack, is the registered part.

I bought this because I already own several Flemming sears, which are proprietary friction sears. I wanted to use factory internals, including the newer roller sears.

It is a true F/A box that can accept factory internals.

Anyone own one of these things? How hard is it to build the trigger pack? Any advice?
 
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