Almost impossible to install factory SKS front sight, help

[Reaper of the apocalypse]

I had to replace the front sight assembly on my SKS, which is the whole sleeve including the bayonet mount. I removed the two pins, and with an incredible amount of force hammered off the old sight, no damage to rifle.
Now I'm trying to put the new one on, and it's also insanely tight.

Should I grind off some material, or is there some method I can use to get this on?
Alright tried plenty of grease, oil, and lubrication.

 

[Bubba Yugga]

Air hammer with a flat snap.
For the last bit, use a piece of steel pipe that just slips over the muzzle.

 

[Bubba Yugga]

You may have to heat the sleeve with a propane torch to help it along.

 

[Reaper of the apocalypse]

Air hammer with a flat snap.
For the last bit, use a piece of steel pipe that just slips over the muzzle.

I don't have an air compressor.

 

[Bubba Yugga]

I don't have an air compressor.

Lots of coffee and a ball peen hammer then.

 

[Bubba Yugga]

Oh, if you can find a nice big alignment tool (tapered punch) that catches early in the hole that the cleaning rod goes through, you might have some good luck with that.

 

[oz]

Put the barrelled section in the freezer overnight - heat the sleeve as hot as you can in your stove oven - have the driving tools
and setup ready to go - make sure things are lined up and move quickly - once you start you can’t stop - barrel out of the stock
of course -
oz

 

[louthepou]

First, use a caliper and check the diameters. There's some variation. On a couple of occasions i had to very slightly reduce the barrel diameter for the assembly to go on without having to use a 12-pound sledgehammer.