User Panel
Good question sir. The rear flat of the buffer has a indentation in the middle, rough circular cuts and flats are cut on both parts of the buffer. I'll post close up pictures soon comparing the GM to a Colt. Now it's spooky movie time with the kids.
|
|
Awesome! Dream build for me for sure. Still hoping to find a nice front half like that, any particular source?
|
|
Quoted:
Awesome! Dream build for me for sure. Still hoping to find a nice front half like that, any particular source? View Quote No particular source.........just speaking to the right person at the right time. Ti answer "backbencher's" question, GM production started in 68 and were made from 7075. |
|
Quoted:
What color anodize are you going to do? View Quote I would vote against anodizing based on my past experience. Since you are going to have the magwell welded to the back half of an 80% lower, the weld will show. Also, if you have it anodized, they will sandblast the lower. When they did that to mine, it caused some pitting which really ticked me off. Braceman advised against having it anodized and I should have taken his advice! I have done two others since and used Norrells and they turned out great. |
|
Quoted:
I would vote against anodizing based on my past experience. Since you are going to have the magwell welded to the back half of an 80% lower, the weld will show. Also, if you have it anodized, they will sandblast the lower. When they did that to mine, it caused some pitting which really ticked me off. Braceman advised against having it anodized and I should have taken his advice! I have done two others since and used Norrells and they turned out great. View Quote View All Quotes View All Quotes Quoted:
Quoted:
What color anodize are you going to do? I would vote against anodizing based on my past experience. Since you are going to have the magwell welded to the back half of an 80% lower, the weld will show. Also, if you have it anodized, they will sandblast the lower. When they did that to mine, it caused some pitting which really ticked me off. Braceman advised against having it anodized and I should have taken his advice! I have done two others since and used Norrells and they turned out great. Was it a GM part or a Colt part that acquired pitting as a result of the blasting process? I have had a few things done at US anodizing including a square forge 604 upper and it came out fine. Did you use Norrells on any GM stuff and if so what color did you use? |
|
Quoted:
Was it a GM part or a Colt part that acquired pitting as a result of the blasting process? I have had a few things done at US anodizing including a square forge 604 upper and it came out fine. Did you use Norrells on any GM stuff and if so what color did you use? View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
What color anodize are you going to do? I would vote against anodizing based on my past experience. Since you are going to have the magwell welded to the back half of an 80% lower, the weld will show. Also, if you have it anodized, they will sandblast the lower. When they did that to mine, it caused some pitting which really ticked me off. Braceman advised against having it anodized and I should have taken his advice! I have done two others since and used Norrells and they turned out great. Was it a GM part or a Colt part that acquired pitting as a result of the blasting process? I have had a few things done at US anodizing including a square forge 604 upper and it came out fine. Did you use Norrells on any GM stuff and if so what color did you use? My first was a Colt XM16E1, m.My second was a Colt M16A1, and my third was an H&R. If you are going to have it welded by Braceman, you make want to seek his advice on anodizing. The weld would likely show up. |
|
|
Quoted:
My first was a Colt XM16E1, m.My second was a Colt M16A1, and my third was an H&R. If you are going to have it welded by Braceman, you make want to seek his advice on anodizing. The weld would likely show up. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
What color anodize are you going to do? I would vote against anodizing based on my past experience. Since you are going to have the magwell welded to the back half of an 80% lower, the weld will show. Also, if you have it anodized, they will sandblast the lower. When they did that to mine, it caused some pitting which really ticked me off. Braceman advised against having it anodized and I should have taken his advice! I have done two others since and used Norrells and they turned out great. Was it a GM part or a Colt part that acquired pitting as a result of the blasting process? I have had a few things done at US anodizing including a square forge 604 upper and it came out fine. Did you use Norrells on any GM stuff and if so what color did you use? My first was a Colt XM16E1, m.My second was a Colt M16A1, and my third was an H&R. If you are going to have it welded by Braceman, you make want to seek his advice on anodizing. The weld would likely show up. I will heed your advice sir! |
|
Quoted:
I'm going to let US Anodizing decide. I've exchanged emails and pictures with Victor as well. Both the upper and partial GM lower I have still bear the original finish and match perfectly yet are rather worn around the edges. It's almost like a satin black yet very, very smooth unlike his Colt "early grey" or "pre ban grey". It's a toss up between the Type III "new black" or the Xtremcoat" satin black and I'm going to let him decide based on the original finish. To answer M16Indiana's question regarding GM buffers here is a comparison between a GM and a Colt buffer. In the first picture the GM is on the right and the Colt is on the left. You can see the divot on the middle of the GM and the circular machine marks around the divot on the GM. GM manufactured 39 parts "in house" vs the 77 parts they purchased from "outside" so I'm going to have to start adding them up to see how close I'm getting. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20001_zpsyv7xbmhz.jpg GM buffers also , from the two I have seen not including mine have an additional flat cut into the middle area inline with the cut on the end of the buffer and it's very rough. The GM is on the bottom in this picture. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20002_zpstvjssdi8.jpg View Quote View All Quotes View All Quotes Quoted:
Quoted:
What color anodize are you going to do? I'm going to let US Anodizing decide. I've exchanged emails and pictures with Victor as well. Both the upper and partial GM lower I have still bear the original finish and match perfectly yet are rather worn around the edges. It's almost like a satin black yet very, very smooth unlike his Colt "early grey" or "pre ban grey". It's a toss up between the Type III "new black" or the Xtremcoat" satin black and I'm going to let him decide based on the original finish. To answer M16Indiana's question regarding GM buffers here is a comparison between a GM and a Colt buffer. In the first picture the GM is on the right and the Colt is on the left. You can see the divot on the middle of the GM and the circular machine marks around the divot on the GM. GM manufactured 39 parts "in house" vs the 77 parts they purchased from "outside" so I'm going to have to start adding them up to see how close I'm getting. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20001_zpsyv7xbmhz.jpg GM buffers also , from the two I have seen not including mine have an additional flat cut into the middle area inline with the cut on the end of the buffer and it's very rough. The GM is on the bottom in this picture. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20002_zpstvjssdi8.jpg Cool, thanks. It looks like I have one in my parts box - I'll add it to my GM stash. It looks just like yours with the flats on the side and the wine colored pad, but my end divot is not as deep as yours. |
|
Quoted:
Cool, thanks. It looks like I have one in my parts box - I'll add it to my GM stash. It looks just like yours with the flats on the side and the wine colored pad, but my end divot is not as deep as yours. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
What color anodize are you going to do? I'm going to let US Anodizing decide. I've exchanged emails and pictures with Victor as well. Both the upper and partial GM lower I have still bear the original finish and match perfectly yet are rather worn around the edges. It's almost like a satin black yet very, very smooth unlike his Colt "early grey" or "pre ban grey". It's a toss up between the Type III "new black" or the Xtremcoat" satin black and I'm going to let him decide based on the original finish. To answer M16Indiana's question regarding GM buffers here is a comparison between a GM and a Colt buffer. In the first picture the GM is on the right and the Colt is on the left. You can see the divot on the middle of the GM and the circular machine marks around the divot on the GM. GM manufactured 39 parts "in house" vs the 77 parts they purchased from "outside" so I'm going to have to start adding them up to see how close I'm getting. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20001_zpsyv7xbmhz.jpg GM buffers also , from the two I have seen not including mine have an additional flat cut into the middle area inline with the cut on the end of the buffer and it's very rough. The GM is on the bottom in this picture. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20002_zpstvjssdi8.jpg Cool, thanks. It looks like I have one in my parts box - I'll add it to my GM stash. It looks just like yours with the flats on the side and the wine colored pad, but my end divot is not as deep as yours. Nothing like an undiscovered find in the old parts box!! |
|
Quoted:
Nothing like an undiscovered find in the old parts box!! View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
What color anodize are you going to do? I'm going to let US Anodizing decide. I've exchanged emails and pictures with Victor as well. Both the upper and partial GM lower I have still bear the original finish and match perfectly yet are rather worn around the edges. It's almost like a satin black yet very, very smooth unlike his Colt "early grey" or "pre ban grey". It's a toss up between the Type III "new black" or the Xtremcoat" satin black and I'm going to let him decide based on the original finish. To answer M16Indiana's question regarding GM buffers here is a comparison between a GM and a Colt buffer. In the first picture the GM is on the right and the Colt is on the left. You can see the divot on the middle of the GM and the circular machine marks around the divot on the GM. GM manufactured 39 parts "in house" vs the 77 parts they purchased from "outside" so I'm going to have to start adding them up to see how close I'm getting. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20001_zpsyv7xbmhz.jpg GM buffers also , from the two I have seen not including mine have an additional flat cut into the middle area inline with the cut on the end of the buffer and it's very rough. The GM is on the bottom in this picture. http://img.photobucket.com/albums/v633/tazaroo/GM%20Buffer%20002_zpstvjssdi8.jpg Thought I was going to have to look for one too, but I found a GM in my stash also. Thanks for the heads-up on what a GM buffer looks like! Cool, thanks. It looks like I have one in my parts box - I'll add it to my GM stash. It looks just like yours with the flats on the side and the wine colored pad, but my end divot is not as deep as yours. Nothing like an undiscovered find in the old parts box!! |
|
Very cool. Never knew there were GM specific made buffers. Learn something new all the time in here! Going to be a real one of a kind build when done. Congrats on acquiring the very cool parts!
|
|
Quoted:
Very cool. Never knew there were GM specific made buffers. Learn something new all the time in here! Going to be a real one of a kind build when done. Congrats on acquiring the very cool parts! View Quote GM manufactured in house 39 parts for the rifle and purchased 77 parts. The body of the buffer was made in house but the internal buffer weights and buffer bumper were outsourced. |
|
Quoted:
GM manufactured in house 39 parts for the rifle and purchased 77 parts. The body of the buffer was made in house but the internal buffer weights and buffer bumper were outsourced. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Very cool. Never knew there were GM specific made buffers. Learn something new all the time in here! Going to be a real one of a kind build when done. Congrats on acquiring the very cool parts! GM manufactured in house 39 parts for the rifle and purchased 77 parts. The body of the buffer was made in house but the internal buffer weights and buffer bumper were outsourced. Very cool! |
|
Nice receiver chunk.
Where did you get the buffer? Can you tell us how you got it and how you know it is GM made? ETA: I don't remember, have you posted pictures of your upper? Quoted:
My HYDRA-MATIC build is in the final stretch to completion. I now have the properly marked fire control parts, GM buffer and a perfectly "in spec" (minus the Capt Crunch cut) front have of the lower receiver. The Hydra half with my 80% lower will be going to braceman in the near future. Than the upper, slip ring and lower will all be re anodized. The only thing beyond this would be a HRA build but I feel that would be almost impossible. http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20001_zpsthgil89i.jpg http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20002_zpsfytsx1lt.jpg View Quote |
|
Quoted:
Nice receiver chunk. Where did you get the buffer? Can you tell us how you got it and how you know it is GM made? ETA: I don't remember, have you posted pictures of your upper? View Quote View All Quotes View All Quotes Quoted:
Nice receiver chunk. Where did you get the buffer? Can you tell us how you got it and how you know it is GM made? ETA: I don't remember, have you posted pictures of your upper? Quoted:
My HYDRA-MATIC build is in the final stretch to completion. I now have the properly marked fire control parts, GM buffer and a perfectly "in spec" (minus the Capt Crunch cut) front have of the lower receiver. The Hydra half with my 80% lower will be going to braceman in the near future. Than the upper, slip ring and lower will all be re anodized. The only thing beyond this would be a HRA build but I feel that would be almost impossible. http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20001_zpsthgil89i.jpg http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20002_zpsfytsx1lt.jpg I described a few entries above how to tell if it's a GM. I haven't posted pictures of the upper yet but I will when the build is done. I have to keep the suspense building. |
|
I looked through the tacked GM / H&R thread and see MrM1A1's buffer, are there other examples? I didn't realize this was considered a GM trait. (dimple on front, double flats) I've seen the double flat buffers before but thought it was just an "old vs new" thing. Is there any corroborating evidence that these are (all) GM buffers?
Quoted:
I described a few entries above how to tell if it's a GM. I haven't posted pictures of the upper yet but I will when the build is done. I have to keep the suspense building. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Nice receiver chunk. Where did you get the buffer? Can you tell us how you got it and how you know it is GM made? ETA: I don't remember, have you posted pictures of your upper? Quoted:
My HYDRA-MATIC build is in the final stretch to completion. I now have the properly marked fire control parts, GM buffer and a perfectly "in spec" (minus the Capt Crunch cut) front have of the lower receiver. The Hydra half with my 80% lower will be going to braceman in the near future. Than the upper, slip ring and lower will all be re anodized. The only thing beyond this would be a HRA build but I feel that would be almost impossible. http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20001_zpsthgil89i.jpg http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20002_zpsfytsx1lt.jpg I described a few entries above how to tell if it's a GM. I haven't posted pictures of the upper yet but I will when the build is done. I have to keep the suspense building. |
|
Quoted:
I looked through the tacked GM / H&R thread and see MrM1A1's buffer, are there other examples? I didn't realize this was considered a GM trait. (dimple on front, double flats) I've seen the double flat buffers before but thought it was just an "old vs new" thing. Is there any corroborating evidence that these are (all) GM buffers? View Quote View All Quotes View All Quotes Quoted:
I looked through the tacked GM / H&R thread and see MrM1A1's buffer, are there other examples? I didn't realize this was considered a GM trait. (dimple on front, double flats) I've seen the double flat buffers before but thought it was just an "old vs new" thing. Is there any corroborating evidence that these are (all) GM buffers? Quoted:
Quoted:
Nice receiver chunk. Where did you get the buffer? Can you tell us how you got it and how you know it is GM made? ETA: I don't remember, have you posted pictures of your upper? Quoted:
My HYDRA-MATIC build is in the final stretch to completion. I now have the properly marked fire control parts, GM buffer and a perfectly "in spec" (minus the Capt Crunch cut) front have of the lower receiver. The Hydra half with my 80% lower will be going to braceman in the near future. Than the upper, slip ring and lower will all be re anodized. The only thing beyond this would be a HRA build but I feel that would be almost impossible. http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20001_zpsthgil89i.jpg http://img.photobucket.com/albums/v633/tazaroo/GM%20lower%20parts%20002_zpsfytsx1lt.jpg I described a few entries above how to tell if it's a GM. I haven't posted pictures of the upper yet but I will when the build is done. I have to keep the suspense building. Here is a "archived" thread from arfcom about a gentleman who scored a GM complete upper/stock set. His came with the exact same buffer and is pictured. Scroll down to the fifth picture. http://www.ar15.com/forums/t_3_123/572546_My_original_GM_Hydramatic_upper_has_arrived____Now_with_GM_BCG_____Pic_Heavy_.html |
|
|
|
View Quote Not GM. If I'm reading the package correctly they are from either January or March of 68. GM was first awarded their contract on April 19th, 1968. |
|
Ok, I just looked at the picture and it had the flat spots in the rear ring like the GM one pictured earlier.
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.