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Posted: 10/28/2006 9:59:33 PM EDT
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I have no-less than 9 barrels/uppers in the shop right now to be made into NON-NFA XM177 clones. Here is a side-by-side picture of Tom's moderator and a Bushmaster that I removed the small step from and added wrench flats. 
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I'm glad you jumped in here... I was wondering why you chose NOT to thread 1/2-28 all the way through into the big cavity like BM does. Personally, I like the threads all the way through. It allows me to have the threads on the barrel be longer and make the muzzle flush inside the cavity. When you are making them, it would seem to be easier to just drill and tap all the way through rather than have a blind threaded hole. Is there some historical significance to making the muzzle more hidden? From an accuracy standpoint, I want the crown right out in the open. By extending the threads to the cavity, I leave less of a confined area around the muzzle. This lets the gas get away from the bullet a little more. |
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very nice looking fakes I am quite certain 3 out of your current 9 in house this week belong to me...  , I had two bushies with two rings from Bravo 45, and one full set of a fake moderator and a ring from Total Silence, looks like they are all going to come out just fine, looking forward to having them on a gun!
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Machine, Could you give me the O.D. of the main body of your fake mod? Thanks |
No offence taken. The Bushmaster starts out 4 1/2" long and ends up 4 3/8" long. Tom's is about 4 3/16" long The blank adapter would just be a barrel plug to get the action to run on blanks. |
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I'd like a 'slipover' that was made to place the slots near the crown for functional flash suppression (like I would need it with an XM177E2 clone)...and made for a 14.5" light barrel, pinned, to give OAL of 16" for legality. Is that what most folks are asking for? |
That's what I'd like to see. And a good functional flash suppressor not just for exterior looks. |
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You should see our NFA moderators. Look just like the real deal. That said, our non NFA moderators look like the NFA ones do minus the engraving. As for the blank adaptors, these were manufactured and sold by mooremilitaria.com and we worked in conjunction with them to produce a realistic non NFA moderator that could be used on an SBR with a drop in BFA. As for slip overs, we did those on a custom basis in a variety of configurations - including ones with a grenade ring that was integrall with a working flash hider in the front Sorry, this is not new ground. I will say that this was done at the suggestion of a customer so I cannot take credit for it. Presently I cannot do machine work though. Working 80 hours a week at my evening job and don't have a machine shop to do them if I wanted to.
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I know, I know. I keep looking at your website...anyone else want to step up to the plate? |
AR15barrels......With the grenade ring and bushy modified FH.....what would be the minimum length barrel so I can make a 16inch barrel altogether? |
Depends on how much of the threads you choose to use. 12 1/4" to 12 1/2"ish. If your goal is a shorter barrel, then use less threads on the end of the barrel. My goal is always a longer barrel in the same 16.1" overall "legal" length. That's why I use threads about 1" long and bring the muzzle flush inside the moderator. I could even do a 14" barrel and have the muzzle just behind the flash hider slots. This gives you more velocity, more reliability and the same overall "look". |
Looking at the pictures above, I would say no. It appears that Machinehead's own mod does have the cone. Note the difference in the flash hider ports. This is the correct looking way, and what I am waiting for. |
Not sure exactly what you are asking about. Are you talking about the profile of the flash hider slots or something inside? Both Tom's (total silence) and Bushmaster's have a simple large cavity inside with a straight wall back to the step down for the threads. Tom's flash hider slots are more straight through. Bushmasters are more scalloped, like they were made with the cutter pictured by Machinehead. |
Randall here is a cut away pic of a orginal. He is refering to the cone on the baffle cover, at the front. 
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| Randall is correct, TSI's non NFA moderators do not have the muzzle cone as found on the Colt moderators and our NFA moderators. I have the tooling to do this and in fact did make a few like that but there wasn't enough demand to justify making lots of them. I just did a custom batch of 6 for a customer. If this is a critical thing for you I would gladly make more when the circumstances are right. Right now I have no shop to work from and am overworked at my hourly job (80 hours a week). |
you are correct. it does have the cone at the front. the barrel comes up right to it just like a flashider. i essentually have a very heavy a1 FH. |
Thanks. Can't wait to get one 
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Yeah I thought they were tapered (cone) on the NFA Moderator. I am glad they are......I probably should have asked that question before I bought the last NFA from you. :) I can't wait for that six months to pass, so I can get it in my hands!!! Thanks Tom |
It's been taking alot less than 6 months latley. I would love to have a NFA mod, but when I can achive the same afect with 4 more inches of bbl, without $200 to uncle sam, I just can't justifiy it. Congrats on your purchase though, can wait to see pics.
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Guys I just received a email asking me about these. I have been working with a large machine shop the last year or so on having some custom muzzle devices made. From the pics posted these seem like they would be fairly simple. If there is enough interest I could probably look into having a batch made up. The minimum quanity I could do is 100 but price goes WAY down in larger quanities. The only thing I would need would be a sample or print to get the deminsions from. Below are some pics of some similar items Ive had made up.    
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John44, Was one of those flash hiders TSI's? Interesting comparison, too bad the text is so small I can't read it! Anyway, it has been my experience that the powder used has at least as much effect as the flash hider used. Thus even with a good flash hider you can use some high flash powder and negate any gains from your high dime flash hider. Edwin, yeah NFA has been going MUCH quicker now days. It might only be a couple months tops for you to get your NFA moderator. Form 3's are taking two weeks tops now, form 4's less than a month. This is not your fathers NFA branch for sure! Anyway, on the topic of flash reduction, the NFA moderators are only slightly better than the non NFA versions. |
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machine, Since I'm going with something similar to what you've done with this slip-over .... I'm curious as to what you did at the rear of the moderator, (if anything) to close the gap between the ID of the moderator bore .... and the OD of the barrel(?) |
You'd have a 10th if I hadn't just picked up 3 new Stag Arms lowers. I figured I'd better get parts based on priority first. You do nice work to say the least!! |
well i started out with a colt 16" 1/7 match target lightweight barrel. i choped it to 14.5 so the barrel OD is constant the whole length of the bore. the id of the moderator is held to just a couple of thousands over the barrel od. |
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