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Posted: 8/21/2013 11:07:27 AM EDT
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I just purchased this gas block but forgot the hardware but the more i look at it the more i ask my self how it attaches to the barrel.
Where do i put the two taper pins? Gas block Does anyone have a link to what i need to attach this gas block? |
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I just purchased this gas block but forgot the hardware but the more i look at it the more i ask my self how it attaches to the barrel. Where do i put the two taper pins? Gas block Does anyone have a link to what i need to attach this gas block? You have to buy a ream and and access to a drill press. Then, you have to drill through the barrel and gas block. After taper the hole with the reamer. Easy as pie....good luck. I have done it before, but not something I enjoy to do. I would return it to bcm, buy a low pro gas block, and cover with a free float. |
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Since you are asking these questions, I am concluding you do not have the skills or knowledge to do this properly.
Send it to ADCO. http://www.ar15.com/forums/t_3_4/226782_Assemble_your_own_LOWER__UPPER__FREE_FLOAT__TRIGGER__GAS_BLOCK___Step_by_step_instructions_.html&page=25#i5724417 From the link above: I have a drill press with a sliding vice and aluminum barrel blocks. But I think you could use a standard vice. The sliding vice just makes positioning easier. I got all the bits and cutting fluid from Midway. You need a #31 drill and a 2/0 taper reamer. I bought one drill bit for each hole, just to be sure. (I never used the second bit). Because I had a melonite barrel, I also bought a 1/8" end mill. After I got everyting set up, I drilled into the FSB until it just touched the barrel. I removed the drill bit and installed the end mill, and then ran it down to "break the surface of the barrel". Then I replaced the drill bit and finished drilling through the barrel and the other side of the FSB. Using the end mill made a flat spot to prevent the drill bit from walking along the curve of the barrel. I tapped the gas port access hole on the bottom of the FSB and used a set screw to help hold the FSB to the barrel (used the Rainier gas block tool to dimple the barrel). The setscrew prevented the FSB from rotating while drilling, it also helped align the gas hole and the sight itself. I don't know the size of the set screw off top of my head. I used a really slow speed, I believe something like 900 rpm (memory sketchy), and lots of cutting fluid. Here are a couple of archive threads I used: http://www.ar15.com/forums/t_3_123/529473__ARCHIVED_THREAD____Drilling_my_FSB.html&page=1#i5021596 http://www.ar15.com/archive/topic.html?b=3&f=123&t=470461 And a Youtube Video 
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I heard that from another thread.  |
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I heard that from another thread.
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I heard that from another thread.
Ah... a fellow corvette forum member. |
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Ha, I don't think OP will come back. Next time we see op will be in a thread about how it's bull shit that you have to pay to search and bookmark threads. Jk I hope you find your way back and I hope what we said helps....that's what this site is all about I am back! lol sorry i dont sit on the forum all day. I just work on guns when i have time. I have figured out what to do now just to do it. 
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I am back! lol sorry i dont sit on the forum all day. I just work on guns when i have time. I have figured out what to do now just to do it. Quoted:
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Ha, I don't think OP will come back. Next time we see op will be in a thread about how it's bull shit that you have to pay to search and bookmark threads. Jk I hope you find your way back and I hope what we said helps....that's what this site is all about I am back! lol sorry i dont sit on the forum all day. I just work on guns when i have time. I have figured out what to do now just to do it. Awesome, it's really not that bad. I got the ream from midway and some taper pins. I drew a line with a marker on the barrel and front sight to make sure it was still in the same spot. A drill press will make your life so much easier. The line came off with a blue pen. Blue pens are very handy to have. The do wonders on parkarized parts. Good luck OP |
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I just purchased this gas block but forgot the hardware but the more i look at it the more i ask my self how it attaches to the barrel. Where do i put the two taper pins? Gas block Does anyone have a link to what i need to attach this gas block? J: Unless you are really stuck on having a GI fixed front sight, I recommend you save yourself the trouble and switch to a YHM clamp on gas block with a flip up front sight. There is a similar folding model, from a vendor whose name I can't recall, that even has the triangular look to it. - CW http://yhm.net/index.php?main_page=product_info&cPath=2_3&products_id=3&zenid=84c25acf74f7c5df3a43a1d4184a3fde |
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