AR15 FRONT SIGHT BASE REMOVAL

armilite

I have a new CMMG AR15 upper in 6.8. It has the pinned on front sight housing. I'm using the Brownells front sight fixture. I'm using the proper sized punch and a 2lb. hammer. The pins will not budge any suggestions???

Nwcid

You do know they only move one way, they are a tapered pin. With out seeing it I can not say what way they are in.

Some take a harder hit then others to move.

brier-49

Puy a drop of Kroil on them and make sure you go the right way.Tapered pins

armilite

I'm using the Brownells front sight pin fixture. There's one way in and one way out. I'm using the out side. I put some miracle machine oil on the pins last night and it seemed as the stuff leaked through.




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cpermd

Bigger hammer.
Really.

CP

aap2

cpermd is right; a 2 lb hammer is too small. Make sure that you have a punch with a short shank (Brownell's calls them a starting punch), make sure that the barrel/front sight is in uniform contact with the sight fixture, put on safety glasses (required) and whack the punch with a good blow from large hammer (some use the dead blow type).

armilite

I brought home a 3 pounder from work today if that doesn't work I'm getting the sledge hammer out.

v35

The barrel needs to be mounted solidly in a heavy vise with copper or lead soft jaws and the punch be given a ringing blow using a large hammer.
It can be a 2# hammer.
You need two punches: a tapered punch having a flat point to start the pins moving and a pin punch to drive them out.

dfletcher

quote:Originally posted by cpermd
Bigger hammer.
Really.

CP


Really, really bigger hammer maybe. [}:)]

I've removed a dozen or so front sights, they can be a real bugger to get out. I've always tapped out left to right as yo have in the photo.

A very short steel punch as opposed to a long one might help you transfer more of the blow to the pin.