02-13-2018, 03:54 PM
Those are good to lap for a press-fit.
The problem with the builder market is that manufacturers are left with 2 choices:
1. Make a gas block that will seal like the TDP calls for, so that no gas leaks from the union of the block and journal.
2. Make a gas block that any home builder can simply slide on and mount in place with an easy method.
If you notice the Mil-Spec FSB, it uses taper pins. As you pound in the taper pins, what happens?
The top inside of the FSB rings pull down against the top outside of the barrel, providing a secure gas seal for the system.
This is probably one of the most overlooked hinge points of reliability with home builders.
The problem with the builder market is that manufacturers are left with 2 choices:
1. Make a gas block that will seal like the TDP calls for, so that no gas leaks from the union of the block and journal.
2. Make a gas block that any home builder can simply slide on and mount in place with an easy method.
If you notice the Mil-Spec FSB, it uses taper pins. As you pound in the taper pins, what happens?
The top inside of the FSB rings pull down against the top outside of the barrel, providing a secure gas seal for the system.
This is probably one of the most overlooked hinge points of reliability with home builders.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com