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n7qvu · March 10, 2010, 01:19 PM

I have a two 'green' barrels from parts kits that aren't cut for the pins on the front sight. My barrel in that area is 0.625. I liked the YHM clamp on front sight and gas block, but the one I bought seems to work on larger barrels(0.7+).

There has to be a trick with cutting the barrel slightly so the pins will fit on the gas block/front sight. I measured and the cut doesn't need to be very deep.

Thanks in advance.

March 10, 2010, 01:19 PM	#1
n7qvu Senior Member Join Date: December 24, 2009 Location: Overgaard, AZ USA Posts: 153	? - Front sight on a AR15 'green' barrel. I have a two 'green' barrels from parts kits that aren't cut for the pins on the front sight. My barrel in that area is 0.625. I liked the YHM clamp on front sight and gas block, but the one I bought seems to work on larger barrels(0.7+). There has to be a trick with cutting the barrel slightly so the pins will fit on the gas block/front sight. I measured and the cut doesn't need to be very deep. Thanks in advance. __________________ Jerry W. NRA Instructor: Pistol, Home Safety, Personal Protection, RSO, Reloading. NRA Life Member, NRA-ILA Sustaining Member, AZ CCW training org. & instructor, AZ HE instructor. JWsGUNs.com FFL-07, NFA SOT-C2.