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Posted: 5/20/2026 11:49:25 PM EDT
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Really stuck. I just opened the bag of a fn socom barrel that I've owned three or four years now and I can't for the life of me move these pins. I have deformed my midwest sight block beating on this thing. I put it on my anvil even. Yes Im driving or attempting to drive them the correct way as I have confirmed that by measuring them with calipers. Ive let clp and pb blaster sin on it. I guess I could try heating the fob? The plastic block is already trashed but don't want to get the barrel all plasticy. But if that's my last option I'll do it. Thoughts? |
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Originally Posted By neight: Really stuck. I just opened the bag of a fn socom barrel that I've owned three or four years now and I can't for the life of me move these pins. I have deformed my midwest sight block beating on this thing. I put it on my anvil even. Yes Im driving or attempting to drive them the correct way as I have confirmed that by measuring them with calipers. Ive let clp and pb blaster sin on it. I guess I could try heating the fob? The plastic block is already trashed but don't want to get the barrel all plasticy. But if that's my last option I'll do it. Thoughts? |
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Yeah I’m going to pick up a convex punch tomorrow. Was swinging a 3# smithy on it. I deformed the block and kinda boogered up the fsb. Going in a RIS3 though. But that’s when I put more pb on it and walked away for the evening. It feels like the MI block is bouncing. |
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Soaking it in anything isn't going to help. You need to hit the pin HARD. The soft block is likely absorbing much of the force as well, so I would recommend finding a more solid surface. When I remove FSB pins, I always start with a flat head punch that is slightly larger than the pin head, just to knock the pin loose. Then, I use a punch with a smaller diameter to drive the pin out. I occasionally come across a very, very stubborn FSB pin, and the only solution is to HIT IT HARDER. |
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Originally Posted By backbencher: We need a hydraulic FSB pin remover. The harbor freight press is great for pushing out gas block pins on AKs OP try putting the upper in freezer for 12 hours and then using a drift, it’s tapered so it doesn’t get bent to shit after one strike Attached File The AK route uses the harbor freight press and these tools from Robert Forbus Attached File Attached File |
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Originally Posted By jntmjt1: When/if you give up, feel free to send it to me, and I'll remove it for free (you'd just need to cover the shipping costs). If you are interested message or email me and we'll work out the logistics. John Thomas Retro Arms Works Solid. |
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Originally Posted By jntmjt1: When/if you give up, feel free to send it to me, and I'll remove it for free (you'd just need to cover the shipping costs). If you are interested message or email me and we'll work out the logistics. John Thomas Retro Arms Works This is why he gets my business. |
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Originally Posted By jntmjt1: When/if you give up, feel free to send it to me, and I'll remove it for free (you'd just need to cover the shipping costs). If you are interested message or email me and we'll work out the logistics. John Thomas Retro Arms Works You sir are a great American, a gentleman and a scholar. I will be messaging you shortly. I don’t mind paying you for your time one bit either. Also wondering if I can send my socom four prong for you to prep it for a pin and weld? |
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Originally Posted By neight: ... Also wondering if I can send my socom four prong for you to prep it for a pin and weld? I can do that, it might be best just to have me pin/weld it. The cost probably wouldn't be that much more than just "prepping" it, by the time you ship the parts. JT |
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Originally Posted By jntmjt1: When/if you give up, feel free to send it to me, and I'll remove it for free (you'd just need to cover the shipping costs). If you are interested message or email me and we'll work out the logistics. John Thomas Retro Arms Works Well done, Sir! This place can still amaze me, sometimes… 🍻 |
OK, see you later, Redcoat…
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Originally Posted By Blowout: I use the corner of a 5" bench vise to press the pins out. Prior to that I was beating the pins so much they were starting to mushroom. Took all the drama out using the vise. Press the pins back in with the vise too. I’m sending this one to JT but I’m curios what that set up looks like. Could you post some pics of how you’re doing that? |
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Originally Posted By TGWLDR: Oak blocks on concrete, a section of 5/8" brass round, and a BFH. I haven't lost a battle yet. They need "shocked" loose and the brass transmits that initial force well. Exactly this. Concrete, hard wood, ~8" long THICC brass rod and a FIRM strike with a ~3lb mini sledge. |
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