Buffer Roll Pin Won't Budge

[TacticalPirate]

I need help, YouTube and the internet have failed me thus far.

I have a Geissele H2 buffer I'm trying to add a tungsten weight to to upgrade it to an H3, and the roll pin will not budge, I'm struggling mightily to hammer it out with a punch so I can swap out a steel weight for a tungsten one. This should've been a 30 second task.

This would be the stupidest thing ever to take to a gunsmith, any tips?

 

[TidalWave]

I need help, YouTube and the internet have failed me thus far.

I have a Geissele H2 buffer I'm trying to add a tungsten weight to to upgrade it to an H3, and the roll pin will not budge, I'm struggling mightily to hammer it out with a punch so I can swap out a steel weight for a tungsten one. This should've been a 30 second task.

This would be the stupidest thing ever to take to a gunsmith, any tips?

Can u post a picture ?

 

[TacticalPirate]

Can u post a picture ?

 

[Keystone19250]

I need help, YouTube and the internet have failed me thus far.

I have a Geissele H2 buffer I'm trying to add a tungsten weight to to upgrade it to an H3, and the roll pin will not budge, I'm struggling mightily to hammer it out with a punch so I can swap out a steel weight for a tungsten one. This should've been a 30 second task.

This would be the stupidest thing ever to take to a gunsmith, any tips?

I’m thinking @xdman can help with this.

 

[BangBang]

You need to secure the buffer. The pin should come out with no issue. You may have to use more force as I don’t know how much your using. If you can put it in a vice or make a fixture that will help. Something like this.

 

[xdman]

You need to secure the buffer. The pin should come out with no issue. You may have to use more force as I don’t know how much your using. If you can put it in a vice or make a fixture that will help. Something like this.

I am liking this fixture

 

[BobM]

Are you sure it's roll pin?
Am not familiar with Geissele H2 buffer. On this end of pic, even enlarged , looks almost like hex head set screw, not roll pin. Find another of same style buffer w/o issue to verify fastener used?

Yes, jigs definitely help when dealing with small parts. Padded non flammable jigs are generally best when dealing with heat or open flame. Either way, try heating surrounding area and removing fastener if metal? (Looks like it is.) Or, drill out fastener with bit approximately 1/4 or smaller to possibly half size diameter of fastener, then move bits up progressively until most of fastener is gone. Then, tap out remainder with small chisel or punch. Idea is to eventually slot old fastener from top to bottom on at least two sides and pry out with pick or similar tool pushing out remaining fastener inwards to drop it out fastener hole. Have done w/o slotting fastener many times when careful.

If set screw? Be wary of cutting screw threads. If roll pin? Drill out and use another roll pin. If drilled out too much, use over sized roll pin to refasten. But, either way, it can be done if very careful. Good luck!

TIP: Need good quality drill bits tougher than fastener to work. Drill press helps too.

 

[TacticalPirate]

Are you sure it's roll pin?
Am not familiar with Geissele H2 buffer. On this end of pic, even enlarged , looks almost like hex head set screw, not roll pin. Find another of same style buffer w/o issue to verify fastener used?

Yes, jigs definitely help when dealing with small parts. Padded non flammable jigs are generally best when dealing with heat or open flame. Either way, try heating surrounding area and removing fastener if metal? (Looks like it is.) Or, drill out fastener with bit approximately 1/4 or smaller to possibly half size diameter of fastener, then move bits up progressively until most of fastener is gone. Then, tap out remainder with small chisel or punch. Idea is to eventually slot old fastener from top to bottom on at least two sides and pry out with pick or similar tool pushing out remaining fastener inwards to drop it out fastener hole. Have done w/o slotting fastener many times when careful.

If set screw? Be wary of cutting screw threads. If roll pin? Drill out and use another roll pin. If drilled out too much, use over sized roll pin to refasten. But, either way, it can be done if very careful. Good luck!

TIP: Need good quality drill bits tougher than fastener to work. Drill press helps too.

Yes sir, Geissele instructions call it a roll pin, no hex head on it, more like a small hinge.

I have the manufacturer recommended punch and a gun vise, but it's winning so far.

 

[KillerFord1977]

Yes sir, Geissele instructions call it a roll pin, no hex head on it, more like a small hinge.

I have the manufacturer recommended punch and a gun vise, but it's winning so far.

Call their cust service line

 

[TacticalPirate]

I paid ten bucks to have my gunsmith beat it out. My defeat was mitigated by his struggle with it making my amateur gunsmithing not feel so woesome.

 

[TidalWave]

Did he offer any explanation as to why it was that way ??

 

[TacticalPirate]

Did he offer any explanation as to why it was that way ??

Sometimes they're just stubborn and stuck.

 

[BobM]

Yes sir, Geissele instructions call it a roll pin, no hex head on it, more like a small hinge.

I have the manufacturer recommended punch and a gun vise, but it's winning so far.

Regardless, am glad you're winning! And, hopefully won!

 

[TacticalPirate]

Regardless, am glad you're winning! And, hopefully won!

I won this round eventually (with help), and today I bought a Saint Edge Evac and am installing a H3 and Rare Breed in that little compact package...it's going to probably run like a sub semi auto, I'm excited.