AR Sponsor
Posted: 1/4/2013 10:08:10 PM EDT
Does anyone have dimensions for one of these?
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I have 3 repro ones that one of our members made up a few years ago (drawing a blank on his name right now),I don't know where he got his measurements from,I think he scaled it from pics or something like that. I can send you measurements from these if you think it would help.I can't do pics,my puter is shot and am using daughters laptop.
I keep thinking it was UncleMoak,but not sure,,I do know he was one of the guys who was very instrumental in the making of the prototype FSBs.He wrote the puter program and made the plastic model of the FSB that Orex sent to the foundry. |
There were a number of discussions about the viability and reasoning behind these over the last few years. An archive search should find them. Lots of pictures of short barrelled 'trumpets' along with theories. Note they used them on M1 carbines and AR18 short carbines as well. Just a little too odd for me - reminds me of Dr. Suess for some reason.
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Quoted:
I have 3 repro ones that one of our members made up a few years ago (drawing a blank on his name right now),I don't know where he got his measurements from,I think he scaled it from pics or something like that. I can send you measurements from these if you think it would help.I can't do pics,my puter is shot and am using daughters laptop. I keep thinking it was UncleMoak,but not sure,,I do know he was one of the guys who was very instrumental in the making of the prototype FSBs.He wrote the puter program and made the plastic model of the FSB that Orex sent to the foundry. Measurements would help, doesnt need to be perfect just to get the general shape. |
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Quoted:
I have 3 repro ones that one of our members made up a few years ago (drawing a blank on his name right now),I don't know where he got his measurements from,I think he scaled it from pics or something like that. I can send you measurements from these if you think it would help.I can't do pics,my puter is shot and am using daughters laptop. I keep thinking it was UncleMoak,but not sure,,I do know he was one of the guys who was very instrumental in the making of the prototype FSBs.He wrote the puter program and made the plastic model of the FSB that Orex sent to the foundry. yup...unclemoak http://www.ar15.com/archive/topic.html?b=7&f=119&t=704051 |
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Quoted:
Quoted:
I have 3 repro ones that one of our members made up a few years ago (drawing a blank on his name right now),I don't know where he got his measurements from,I think he scaled it from pics or something like that. I can send you measurements from these if you think it would help.I can't do pics,my puter is shot and am using daughters laptop. I keep thinking it was UncleMoak,but not sure,,I do know he was one of the guys who was very instrumental in the making of the prototype FSBs.He wrote the puter program and made the plastic model of the FSB that Orex sent to the foundry. Measurements would help, doesnt need to be perfect just to get the general shape. Using digital calipers: Overall length = 3" Outside diameter of large end = 1.745 Outside diameter of thin end = 0.748 Wall thickness of the bell = 0.130 Length of the thin end,from end to the point it starts to taper = 0.620 Side to side at the wrench flats = 0.640 Wrench flat cuts from the end in measure 0.300 |
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John, my flash hider appears to be both slightly different and to be made differently than the one pictured early in this post. It is most likely a replica M2; the seller thought it was and it has no markings on it at all. In addition it seems to be made of thinner material than originals.  The cone itself is two piece; the cone and a adapter that slides into the cone. The adapter has a projection that passes through a hole in the bayonet lug attachment. The projection was upset so that it remained in the part that attaches to the bayonet lug.  The cone appears to have been made on a metal spinning lathe. Here are the measurements in inches: Cone: Length: 2.6 Large Diameter: 1.85 Small Diameter: 0.95 Thickness: 0.03 Adapter: O/A Length: 0.8 "Inside” Length: 0.475 Large Diameter: 1.0 Small Diameter: 0.89 Projection: 0.625 Through hole: 0.5  In order to modify mine to work on the 608 I’ll have to turn a new adapter. It will need to be a two piece adapter, one that has the proper taper for the inside of the cone and a means to attach the rear most part of the adapter that has the ½ x 28 threads for the barrel. I don’t know yet if I will thread these two pieces together of if I’ll press fit and braze them. |
...Or you could adapt an Enfield 'Jungle Carbine' flash hider to your AR... 
The front sight was just a little bit too low, so I fabricated an FH with the sight base extended somewhat...(FH at bottom)... Project stalled due to work constraints... 
(Sorry about the poor quality pic; the flash on my digi-cam refused to work)... 
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