AR-15 A-Frame sight/ gas block removal?

[Rie2183]

I have a Spikes Tactical AR with a mid-length gas system. I'm trying to remove the a-frame sight so that I can install a free float rail system but I can't get the two pins out. I did some google searching and realized that they are flared. I also read that they may be pressed in making them almost impossible to remove. I can't believe that it's this hard to take the sight off. Can anyone give me a hint or trick to get them out? I'm just afraid to damage the sight or barrel. Thanks!

 

[SpeedRacer]

They are tapered, one side will be bigger. Obviously you'll want to hit the other side. Saturate them with PB Blaster, Kroil or even just oil if you don't have anything else. And the most important part...put the assembly on a block of wood on the floor, preferably a concrete floor. You need all the force going into the pins and not a wobbly workbench or kitchen table. If possible have someone hold it still while you focus on getting good whacks on it. With a typical hammer or small maul you should be able to break them lose in 2-3 hits. Don't be skerred to put some muscle into it.

 

[Blackhawk]

Not sure if they are flared. I thought that they were tapered, and that they had to be driven out in the proper direction. Use a punch on a solid support (with a hole for the pin to be driven through). Tap from left to right, with left being the side of the rifle without the ejection port. Whenever I attempt to drive out a pin like these, I also liberally use penetrating oil and let it soak a while.

 

[Blackhawk]

Speedracer, obviously we must have been typing at the same time (but great minds think alike).

 

[Rie2183]

Thanks guys. I'll have to stop by the Hone Depot tomorrow and pick some up. Then I'll give it another shot. Thanks again!

 

[rcm192]

on my stag i believe that one pin was opposite direction of the other. Becareful and make sure that one isnt reversed.

 

[Sin-ster]

Begin with a starter punch if you're still having trouble; you can lose a ton of force by warping/flexing a standard pin punch. Once the taper pins break free at all, they typically ease right out.

 

[SpeedRacer]

Begin with a starter punch if you're still having trouble; you can lose a ton of force by warping/flexing a standard pin punch. Once the taper pins break free at all, they typically ease right out.

This is a good tip also. I actually use a large (3/32") nail set to break them loose, the concave head makes it much easier to stay on the pin.

 

[gmshooter]

I have broke my fair share of punches trying to get these out. you may have to use a caliper to figure which way the taper is( i use one to verify but it should be visible to the eye). i have had straight pins but never one that wa opposite of the other pin. good luck.

 

[Sin-ster]

This is a good tip also. I actually use a large (3/32") nail set to break them loose, the concave head makes it much easier to stay on the pin.

Ahh, clever.

One note on the starter punch method-- be CERTAIN you're moving the taper pins in the right direction. You WILL pancake-stake that sucker in there some otherwise-- especially when the heavier hammers come out...

 

[killdee]

This gadget would help greatly, but it's $40 at Brownell's. Not sure if you can find one cheaper.