02-27-2018, 06:14 PM
yes their 556 will have a standard pin, so that one will work in your group buy 6.5 Gr bolt.
The 556 bcg should be a bit lower cost too.
Only thing for the toolcraft 6.5 Gr's is, if you get one, keep the bolt and firing pin together as a unit and they will work fine.
All the other BCG pieces/parts are interchangeable.
The 556 bcg should be a bit lower cost too.
Only thing for the toolcraft 6.5 Gr's is, if you get one, keep the bolt and firing pin together as a unit and they will work fine.
All the other BCG pieces/parts are interchangeable.
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