Canted AR15 fsb and roll pins

[40MikeMike]

I got my ar back from a gunsmith, after a month wait I have to say the work is quite dissapointing. The front sight post was suppose to have taper pins and instead the "gunsmith" used roll pins because in his words it was "difficult" as he said. And the fsp is canted slightly to the left, any way to remedy the cant while reaming out the pins? The cant is hard to see in pictures but is there. The pin and weld wasnt very good either but that's easy enough with a file and a little cold blue.

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[Velzey]

Looks like he also drilled them to high. I center the pin holes in the square. I also use a fixture so nothing is canted.
It's most likely drilled for 1/8" roll pins.
It's kind of a tricky fix now that it's got canted thru holes.
I would set it up in the mill on the fixture. Drilled it with a carbide endmill to get a straight thru hole.
Then use an over size 3/0 taper reamer and team it to size. BUT it's drilled high near the bore. So i would do a little math before doing anything.

 

[40MikeMike]

Yeah they are pretty high and close to the bore another problem I'm facing. Not sure if I could go to over sized pins at this point.

 

[Member 34319]

More importantly, when you brought up the issues, what did the gun smith say?

 

[titsonritz]

What a lame. Properly installing an FSB is no small task, fixing a screwed up one is an even more difficult job. This guy has potentially ruined your barrel for it's intended purpose*, and at minimum has cost you money for the not so easy fix. Also, he should have use taper pins. Did the placard on the door read "Bubba's Gunsmithing"?

*You can always LPGB it, would be a cheaper "fix".

P.S. When I build an AR with a FSB, the barrel comes with it preinstalled, I'm not sending it to nobody.

 

[40MikeMike]

More importantly, when you brought up the issues, what did the gun smith say?

He apologized and took money off the "work" he did, about all he did.

 

[40MikeMike]

What a lame. Properly installing an FSB is no small task, fixing a screwed up one is an even more difficult job. This guy has potentially ruined your barrel for it's intended purpose*, and at minimum has cost you money for the not so easy fix. Also, he should have use taper pins. Did the placard on the door read "Bubba's Gunsmithing"?

*You can always LPGB it, would a cheaper "fix".

P.S. When I build an AR with a FSB, the barrel comes with it preinstalled, I'm not sending it to nobody.

I would of bought it with the fsb already installed but bcm didnt have any pre assembled uppers so I bought the parts seperately. A lo-pro gas block would defeat the purpose of what I was going for. I know the job isn't easy which is why I thought to bring it too a "professional"

 

[titsonritz]

He apologized and took money off the "work" he did, about all he did.

Screw that, "You owe me a barrel a'hole."

 

[titsonritz]

A lo-pro gas block would defeat the purpose of what I was going for.

That's why I worded it how I did.

 

[titsonritz]

IMO he should be paying Tim's gunsmithing fees.

 

[40MikeMike]

IMO he should be paying Tim's gunsmithing fees.

Depending on what it takes to fix this mistake, I'm going to try to fix it or risk having another gun smith fix it. At that point I will be sending him a bill or have him order me a replacement. Who is Tim? I haven't talked to any gunsmith locally that has been willing to even look at it now.

 

[40MikeMike]

Btw just for the hell of it here's the pin and weld the guy did

 

[titsonritz]

Depending on what it takes to fix this mistake, I'm going to try to fix it or risk having another gun smith fix it. At that point I will be sending him a bill or have him order me a replacement. Who is Tim? I haven't talked to any gunsmith locally that has been willing to even look at it now.

Tim Copeland @Velzey

He posted above, if he can't take of you I doubt you'll find any one else locally that can.

My point with the LPGB is it may be a cheaper path to go with for this particular barrel.

 

[titsonritz]

Btw just for the hell of it here's the pin and weld the guy did

View attachment 714713

That is a pretty terrible job, but as you mentioned can be cosmetically fixed. I'd be more concerned as to it's effectiveness in the eyes of the king.

 

[Diamondback]

Btw just for the hell of it here's the pin and weld the guy did

View attachment 714713

How much did this jackoff rip you off for? John Thomas at Retro Arms Works did an 0.2" shim plus pin-and-weld on my 14.5" Colt M4 for $100 plus shipping, and you have to look real close to see what's Colt work and what's his.

 

[Member 34319]

This is why I ONLY recommend Tim @Velzey !

 

[40MikeMike]

How much did this jackoff rip you off for? John Thomas at Retro Arms Works did an 0.2" shim plus pin-and-weld on my 14.5" Colt M4 for $100 plus shipping, and you have to look real close to see what's Colt work and what's his.

In the end he charged me $95 for the "complete" job

 

[titsonritz]

BTW, this is where you leave a review...
Northwest Firearms Resource Guide

I for one would like to know who not to take a gun to, but would also understand if you want to give him the opportunity to "make it right" first before outing him.

 

[Member 34319]

Btw just for the hell of it here's the pin and weld the guy did

View attachment 714713

I've only had one pin and weld done in the past. No crush washed was used. He timed it, added a correctly sized shim and done. Looks weird to see a crush washer instead of a shim.

 

[40MikeMike]

I've only had one pin and weld done in the past. No crush washed was used. He timed it, added a correctly sized shim and done. Looks weird to see a crush washer instead of a shim.

BCM sent it with the flash hider, that one I wouldnt blame the gunsmith as it was what I supplied him with