Type 81 quad rail

J

Jeffhere

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Hey everybody, does anybody have experience with the older type 81 optic mount quad rail? I am just curious as to how difficult it is to remove this part for cleaning after having shot corrosive ammo. Thank you
 
Jeffhere said:
Hey everybody, does anybody have experience with the older type 81 optic mount quad rail? I am just curious as to how difficult it is to remove this part for cleaning after having shot corrosive ammo. Thank you
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i just noticed you put one up for sale on EE "$400 obo Has a few marks from my struggles in getting it off of my own Type 81."


i had no struggle nor difficult. i dumped mine long ago.
 
Curtton said:
i just noticed you put one up for sale on EE "$400 obo Has a few marks from my struggles in getting it off of my own Type 81."


i had no struggle nor difficult. i dumped mine long ago.
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Yeah, I didn't install the Quad Rail myself. It came that way from TI. The flathead stock screw was so damn tight it felt like someone used power tools to put it in place. My power drill literally wasn't strong enough to remove it. Nor with hand tools. 1/2 inch impact wrench did the job though.
 
Jeffhere said:
Yeah, I didn't install the Quad Rail myself. It came that way from TI. The flathead stock screw was so damn tight it felt like someone used power tools to put it in place. My power drill literally wasn't strong enough to remove it. Nor with hand tools. 1/2 inch impact wrench did the job though.
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They are all tight. Even on the stock handguard. I used a hand impact screwdriver and it came off without damage. I often use it, even without a hammer since you have a good weight.
 
fritzhanzel said:
They are all tight. Even on the stock handguard. I used a hand impact screwdriver and it came off without damage. I often use it, even without a hammer since you have a good weight.
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Yeah, the damage resulted from the power drill slipping. I'll need to try the hand impact screwdriver next time I have a difficult screw. That said, it took quite alot to get this screw off, I'm not convinced it would have done the trick.
 
Jeffhere said:
Yeah, the damage resulted from the power drill slipping. I'll need to try the hand impact screwdriver next time I have a difficult screw. That said, it took quite alot to get this screw off, I'm not convinced it would have done the trick.
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Wanna bet? When it comes to releasing screws and bolts, the absolute strength applied is only one factor. Your attempt with the electrical drill is the worst I can imagine. Yes sure, an impact wrench did the job, lol - the damage was expected. Ask a gunsmith if he needs an impact wrench for his work. Let's not go any further.
 
i had difficulty removing the screws on my LMG HG. it seems the coating on the wood soaked into the screws and acting like a loctite.
 
a few drops of acetone on the gummed up fasteners should help. Also in cases like these, holding the hot pointy end of a soldering iron to the center of the fastener for 30 seconds or so can also help unbind fasteners on many chinese firearms. Avoid breathing any fumes or vapors coming from the screw area though.
 
45ACPKING said:
a few drops of acetone on the gummed up fasteners should help. Also in cases like these, holding the hot pointy end of a soldering iron to the center of the fastener for 30 seconds or so can also help unbind fasteners on many chinese firearms. Avoid breathing any fumes or vapors coming from the screw area though.
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acetone didnt work. i hadnt tried the soldering iron.
 
How do yall go about cleaning the gas port area cleaning after shooting corrosive ammo and aftermarket covers? Do you give it the same hot water bath every time? I see some top covers that come off with opic attached. What do I lightly spray underside with water? Looks like gas goes everywhere without a tube to keep it contained like on sks. Thx
 
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