03-01-2015, 05:24 PM
Wonk - your instincts are good. By no means should you use the takedown pins for barrel work. Plenty of pictures of the wounded and dead from that battle. In your case, I'd consider using either the Geissle Reaction rod or the Magpul Bev Block.
Both will do the job, if you can find one.
Both will do the job, if you can find one.