Hillman Group 556 1 Inch 12 Pack: Heavy-duty Hardware Essential for All Your Projects Review

This is exactly what they say. If you put them on a gas block, they will be too long. I simply cut something off with a small cut-off wheel and blued both sides after installation. Works perfectly.

Wrong size for your Armalite. Too long and needs to be shortened. Also, use anti-seize when installing them or you'll never get them out again without piercing them. They were installed on an unfired gun over the course of a day before realizing I needed to remove them and make a modification - during that time due to barrel/pins/sight base material differences they were installed and actually "welded" . .

This is the correct diameter you need for your sighted gas block. You'll need to trim the end off a bit as they're a bit longer (1/4" IIRC). You should always use new pins when removing the front sight block. It's much better to have a dozen for $10 than 2 for 7 $, how other sellers calculate "Taper Pins AR".

So I had to return the first order because I literally received an empty box (yes I had to return an empty box to get my money back). The next order came with all the pins in the package, but at least the pins were there. The problem was that the pins were crap. Standard Ruger AR pins have a nice smooth 1° taper, these pins technically had a taper but were a wavy, jagged, inconsistent blend from end to end. Not sure if they can be used in a specific application.

I had to remove an old Marlin model 80 gun barrel, the barrel pinches and snaps. The old pin was useless so I bought a 2/0 reamer and a pack of these pins. It's almost impossible to line up the old pinholes when the barrel is reinserted. I could approximate it, but not exactly. I open up the pin hole a bit with a reamer and insert one of those pins. I had to cut the pin because it was longer than I needed but they worked great. If you need to remove a Marlin Model 80 rifle, use these pins. Note