Posted: 1/21/2022 6:21:43 PM EDT
| What is the best method for securing the gas block when you are trying to tap in a roll pin for the gas tube? |
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Quoted:
Change to tapered pins. Use a 1/16" punch and make sure the gas tube hole is centered. Use a 5/64" starter punch to get it well, started. Use a 5/64" roll pin punch to seat it flush. If you are talking about using a jig or holding fixture to hold the gas block, I've never seen the need. I use the Midwest Ind. URR and turn it 90 degrees in the vice. Put the upper on it so the hole is vertical. Seat the pin. |
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This is really cool. Thanks for posting. |
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Quoted: Block of hardwood. Blob of freshly mixed Bondo. Small sheet of saran wrap over the bondo. Smootch gas block and barrel into saran-wrapped bondo. Come back in an hour. Tap in roll pin. Toss block in toolbox. That's fuckin' genius. Attached File |
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Quoted: The edge of my bench. Yeah, you have to hold it kinda funny, but that’s really all you need. This works well enough. You can also be lazy and just crank the block between some aluminum block jaws/barrel blocks and bronze-brush the aluminum smears off the gas block when you're done. |
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Several manufacturers offer purpose-made blocks for this. Ours is due to launch soon. While it’s designed for our Gas Controls, it works great for standard fixed blocks as well. One side does .625” and .750 sizes while the other does.875” models. https://www.riflespeed.com/Armorers-Bench-Block_p_17.html Wether it’s homemade or professionally made, a legit assembly block is a must have. Padded vice jaws are okay for a makeshift setup for small quantities. |
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This |
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What the fuck is wrong for you people???! -search around garage for some surface that you can use. Tires work good. -awkwardly hold it to the side, and try and balance the fucking pin in the hole while you try and hammer it in with a roll pin punch. -knock it to the floor 3-4 times. -get progressively more pissed. -finally wack it and send it into the neither realm. -look for it for about an hour. -give up. Order 4-6 replacements from brownells. -wait 3-7 days. - get new roll pins. Attempt it again the same way. On the way to the set of tires, find the god damn fucking pin right on the ground in front of you. -try the same thing again and again until you get it. |
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Quoted: What the fuck is wrong for you people???! -search around garage for some surface that you can use. Tires work good. -awkwardly hold it to the side, and try and balance the fucking pin in the hole while you try and hammer it in with a roll pin punch. -knock it to the floor 3-4 times. -get progressively more pissed. -finally wack it and send it into the neither realm. -look for it for about an hour. -give up. Order 4-6 replacements from brownells. -wait 3-7 days. - get new roll pins. Attempt it again the same way. On the way to the set of tires, find the god damn fucking pin right on the ground in front of you. -try the same thing again and again until you get it. Attached File |
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Another pointlessly over designed FCD product to separate fools from their money. |
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https://www.midwestindustriesinc.com/AR-15-Lower-Receiver-Block-p/mi-lrb.htm Does a lot more also. 
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