T91 80% Lower Receiver, T91 Front Sight Assembly for Wolf A1 Upper Now Available!

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changhsu08
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Mon Aug 13, 2018 6:34 pm

Any recommendation to completely remove the Wolf A1 gas block? I got the pin removed but the A1 gas block is not moving at all.
My gun smith hates it.


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akguy1985
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Thu Sep 06, 2018 11:14 pm

changhsu08 wrote:
Mon Aug 13, 2018 6:34 pm
Any recommendation to completely remove the Wolf A1 gas block? I got the pin removed but the A1 gas block is not moving at all.
My gun smith hates it.
Will probably need taken off with a press.
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WelchyV90
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Sun Aug 11, 2019 11:48 am

How deep are the engravings on the 80% lower? Is the material prepped for anodizing (sand blasted) ? I had one lowers engravings be destroyed by someone sandblasting for prep for anodizing :-(
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shaocaholica
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Sun Aug 11, 2019 12:38 pm

WelchyV90 wrote:
Sun Aug 11, 2019 11:48 am
How deep are the engravings on the 80% lower? Is the material prepped for anodizing (sand blasted) ? I had one lowers engravings be destroyed by someone sandblasting for prep for anodizing :-(
Are you going to add your own serial number to match the original factory serial number? You’ll probably want to blast after doing that work. Ideally you would blast it after machining and deburring. The engravings looks pretty deep from the photos.
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WelchyV90
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Sun Aug 11, 2019 2:56 pm

shaocaholica wrote:
Sun Aug 11, 2019 12:38 pm
WelchyV90 wrote:
Sun Aug 11, 2019 11:48 am
How deep are the engravings on the 80% lower? Is the material prepped for anodizing (sand blasted) ? I had one lowers engravings be destroyed by someone sandblasting for prep for anodizing :-(
Are you going to add your own serial number to match the original factory serial number? You’ll probably want to blast after doing that work. Ideally you would blast it after machining and deburring. The engravings looks pretty deep from the photos.
I am not adding serial numbers cause they are not needed. I just wanted to make sure on the engravings cause the last one was blasted with 100 grit all around and it destroyed the characters.
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shaocaholica
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Sun Aug 11, 2019 3:40 pm

What do you mean by ‘last one’? For bare aluminum you should be blasting with glass beads and that won’t do anything to deep engravings which is most factory engravings. Only shallow laser engravings and single pass spring loaded tools are potentially removed from blasting with coarse media.
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WelchyV90
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Sun Aug 11, 2019 3:46 pm

shaocaholica wrote:
Sun Aug 11, 2019 3:40 pm
What do you mean by ‘last one’? For bare aluminum you should be blasting with glass beads and that won’t do anything to deep engravings which is most factory engravings. Only shallow laser engravings and single pass spring loaded tools are potentially removed from blasting with coarse media.
https://www.centurionarms.com/product-p/80t91fl.htm

It was that one. I purchased it before T91tactical had their 80%. I took it to someone for blasting and their were the ones that hit it with 100 grit after milling.
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shaocaholica
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Sun Aug 11, 2019 4:14 pm

Blasting places vary. A place that does a lot of aluminum work will have the right media. Ask if they have glass bead media.
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e292644
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Mon Aug 12, 2019 4:09 pm

Marking is about 0.008" depth after sandblast, way deeper than the serial number 0.003".
T91 Engraving Depth.jpg
WelchyV90 wrote:
Sun Aug 11, 2019 11:48 am
How deep are the engravings on the 80% lower? Is the material prepped for anodizing (sand blasted) ? I had one lowers engravings be destroyed by someone sandblasting for prep for anodizing :-(
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