J lock Bolt Question

[ultramagmed]

Can someone please tell me how to identify a Remington "J" lock bolt? How long, and what years were they produced? What are the problems with them? Newbie here, there's been a lot of talk lately and I would like to know the difference. Thanks in advance.

Med.

 

[Dennis Sorensen]

Can someone please tell me how to identify a Remington "J" lock bolt? How long, and what years were they produced? What are the problems with them? Newbie here, there's been a lot of talk lately and I would like to know the difference. Thanks in advance.

Med.

It is very easy to visibly identify.

Look at the bolt shroud. A "J" lock has a sort of "J" shaped keyhole in which a "J" shaped key fits. It turns like a lock and lock the firing pin.

This lock can be accidentally engaged without using the key but it requires the key to unlock it.

Remington has discontinued it. The assembly is also easily replaced by the older style... There must be many thousands of "J" lock assemblies laying around by now.

 

[Mike Bryant]

IThere must be many thousands of "J" lock assemblies laying around by now.

Yep, probably in landfills or scattered around on top of work benches if your shop needs a good cleaning like mine does.