12-04-2013, 02:28 AM
If you have the means to mill your own tools, then I recommend using the UHMW so that it is profiled to your particular gas block, as the Brownell's orange one is horrible for the task. I modified mine to be able to better fit a standard FSB, as well as circular low-profile gas blocks.
![[Image: p_080000252_1.jpg]](http://www.brownells.com/userdocs/products/p_080000252_1.jpg)
You can see my modified block in this picture hanging in the background:
![[Image: 2012-10-03205603.jpg]](http://i1085.photobucket.com/albums/j422/LRRPF52/2012-10-03205603.jpg)
With the low profile gas blocks, you have a cylinder with another spine for the gas tube extending from it, which makes it difficult to secure on a bench block, as well as within an insulated vice.
I also taper my roll pin heads to assist with getting them started in the holes, and the gas tube roll pin is one of the most difficult to get started.
You will also want to radius the face of your ejector with any 6mm PPC-based case in the AR15.
![[Image: 2013-04-01221743_zps8f017d09.jpg]](http://i1085.photobucket.com/albums/j422/LRRPF52/2013-04-01221743_zps8f017d09.jpg)
You can see my modified block in this picture hanging in the background:
With the low profile gas blocks, you have a cylinder with another spine for the gas tube extending from it, which makes it difficult to secure on a bench block, as well as within an insulated vice.
I also taper my roll pin heads to assist with getting them started in the holes, and the gas tube roll pin is one of the most difficult to get started.
You will also want to radius the face of your ejector with any 6mm PPC-based case in the AR15.