Search found 435 matches

by mr fixit
Tue Mar 24, 2020 10:24 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

Yes and no. If the bore is straight, it'll be fine. Lots of bores arent perfectly straight. Ive done it on a very short barrel. It works but isnt a best practice. n't do it if the plan is for running suppressed. snip Gives you an idea how they are made. Like Ecco said, protect the barrel from the s...
by mr fixit
Mon Mar 02, 2020 6:32 pm
Forum: Silencersmithing Forum
Topic: Would like help making K baffles
Replies: 7
Views: 2711

Re: Would like help making K baffles

ECCO Machine wrote:
Sun Mar 01, 2020 12:39 pm
Yup
Thank you sir. With that configuration, have you found blast chamber to be an issue with first round pop? I'm assuming putting the face of the blast baffle about 1/4-3/8" off the muzzle.
by mr fixit
Sat Feb 29, 2020 8:33 pm
Forum: Silencersmithing Forum
Topic: Would like help making K baffles
Replies: 7
Views: 2711

Re: Would like help making K baffles

I played with quite a few K baffle designs in pistol cans. Ultimately, tightly spaced double radius clipped 60° cones outperformed all the K baffle designs. I was actually happy about that, because even though Ks are more material efficient, I can make cones in about 1/3 the time, including the ind...
by mr fixit
Fri Feb 28, 2020 10:58 pm
Forum: Silencersmithing Forum
Topic: Would like help making K baffles
Replies: 7
Views: 2711

Would like help making K baffles

I'm really torn ..... I have a stamp for a 9mm can that will live on my Glock lower AR SBR. I keep going back and forth between 60* cones and stuffing as many as I can in a tube, and making K's. My plan is either 1.625" or 1.5" OD. Im not trying for as short as possible, but rather just long enough ...
by mr fixit
Sat Jan 18, 2020 6:21 pm
Forum: News Stories
Topic: ITAR regs, moving from Trade to Commerce department
Replies: 1
Views: 1564

ITAR regs, moving from Trade to Commerce department

I just saw a blurb about registration for the firearms industry being moved from under the Trade department to the Commerce department. From what I read, there will no longer be a requirement for manufacturers to register and pay ITAR fees. Just wondering if that includes suppressor manufacturers.
by mr fixit
Tue Dec 24, 2019 12:14 am
Forum: Silencersmithing Forum
Topic: building custom buffer for suppressed 9mm AR?
Replies: 9
Views: 1238

Re: building custom buffer for suppressed 9mm AR?

It doesn't get full travel since it is longer than standard. Im pretty sure it doesnt make up a lot of momentum with the short travel
by mr fixit
Fri Dec 13, 2019 10:58 pm
Forum: Silencersmithing Forum
Topic: building custom buffer for suppressed 9mm AR?
Replies: 9
Views: 1238

Re: building custom buffer for suppressed 9mm AR?

Just to give an update, I turned a buffer from CRS. Ended up about 5" long, weighs 9.2oz. Installed and tested with WWB 147gr. Build is a NFA Glock mag lower, 5.5" 9mm barrel, using a standard mil-spec buffer tube and standard carbine spring. Total weight of bolt/carrier and buffer is right at 23oz.
by mr fixit
Wed Dec 04, 2019 6:38 pm
Forum: Silencersmithing Forum
Topic: Machining 416
Replies: 3
Views: 441

Machining 416

I know some here have used some 416ss, and would like to know what it is like to machine and use for baffles. I'm considering 416 baffles for a 9mm PCC build that might also see both sub and super 300Blkout. What I have found is in the annealed state. Just wondering what I am getting into.
by mr fixit
Tue Dec 03, 2019 10:55 am
Forum: Silencersmithing Forum
Topic: Basic Lathe Adjustment
Replies: 17
Views: 3643

Re: Basic Lathe Adjustment

Also go over to Hobby Machinist site. Lots of good information and help there.

https://www.hobby-machinist.com/forums/ ... -here.208/
by mr fixit
Fri Nov 22, 2019 10:14 pm
Forum: Silencersmithing Forum
Topic: building custom buffer for suppressed 9mm AR?
Replies: 9
Views: 1238

building custom buffer for suppressed 9mm AR?

Wondering if anyone here has any experience with 9mm AR carbines, Specifically, making a longer than normal custom buffer to increase weight in the blow-back action as well as limit travel of the carrier/bolt.
by mr fixit
Wed Nov 13, 2019 4:29 pm
Forum: Silencersmithing Forum
Topic: Jacketed tube for 50 BMG?
Replies: 17
Views: 903

Re: Jacketed tube for 50 BMG?

I'm gonna answer short and sweet as well; what you propose is not worth the time, effort,expense, and paperwork. To elaborate, aluminum in centerfire is a bad idea. Freeze plugs are very much less than ideal as baffles (and I say this as the proud maker of a freeze plug can). Assuming you have a 50B...
by mr fixit
Wed Nov 13, 2019 11:40 am
Forum: Silencersmithing Forum
Topic: Advice on baffles for 9mm carbine
Replies: 1
Views: 682

Advice on baffles for 9mm carbine

Going a new direction for 9mm AR carbine. I have an approved form 1 for 9mm, which if I remember correctly is approved for 18". My original plan was to perm attach a monocore to a short barrel. After much reading and research, I think it is best to take the advice offered and not do a permanently at...
by mr fixit
Fri Nov 08, 2019 3:18 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

T-Rex wrote:
Thu Nov 07, 2019 1:47 pm
Cuz pics of catheads :)



I just threaded a junk of 1018, so it fit the spindle.
Welded a piece of 2-1/2 or 3" CS pipe to that.
Turned the OD true.
D&T all the socket-head screw holes.
Cant see the pic. thought it was because i was at work, but cant see it at home either.
by mr fixit
Wed Nov 06, 2019 6:07 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

So, what are my options then? Edited to add: I don't have a spider on the outboard of the lathe. Should I make one for it? It currently has an attachment for the collet closer. That would be the simplest and best solution. Pretty easy to make, and keeps your work close to the chuck, minimizing chat...
by mr fixit
Wed Nov 06, 2019 4:14 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

So, what are my options then?

Edited to add: I don't have a spider on the outboard of the lathe. Should I make one for it? It currently has an attachment for the collet closer.
by mr fixit
Tue Nov 05, 2019 10:44 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

would pulling the barrel and threading between centers be good enough?
by mr fixit
Tue Nov 05, 2019 12:16 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Re: Help threading barrel

It's like threading any other chunk of metal once it's dialed in true with the bore. Have you done much threading? Does your lathe have a spider? Is the spindle length short enough and bore big enough to fit the barrel through? There are a couple decent (need to dig to find them) youtube videos tha...
by mr fixit
Mon Nov 04, 2019 8:46 pm
Forum: Silencersmithing Forum
Topic: Help threading barrel
Replies: 23
Views: 1277

Help threading barrel

Just got a new-to-me Howa 1500 .308 rifle with a 22" spotter barrel. My plan is to cut and thread the barrel at 16 inches, add a suppressor and call it sweet. My problem is that I've never cut and threaded a barrel. I know it's pretty critical. I have a 12" Logan. At 16 inches, barrel diameter is .6...
by mr fixit
Sat Aug 17, 2019 6:09 pm
Forum: Silencersmithing Forum
Topic: Gemtech vs Sparrow vs Cone design?
Replies: 8
Views: 1606

Re: Gemtech vs Sparrow vs Cone design?

Maybe look at Liberty's designs? I believe the Cosmic is rated for anything less than .45 diameter from longer than 16" barrels. their Leonidas is pretty cool design for Blackout, but designed specifically for short barrels in that single caliber. Maybe consider YHM style, not sure of the angle but ...
by mr fixit
Fri Jul 26, 2019 10:38 pm
Forum: Silencersmithing Forum
Topic: Titanium Hazard
Replies: 7
Views: 1517

Re: Titanium Hazard

As was stated, class D fire extinguisher must be used on metal fires. Just to be clear and make sure everyone knows, the "Multipurpose" (also known as ABC) will have no effect on metal fires. I have heard of keeping sand on hand to smother the metal fire. I've also heard of having the chemical powde...
by mr fixit
Thu Jul 25, 2019 7:43 am
Forum: Silencersmithing Forum
Topic: .223/5.56 Completed can- Build with pics
Replies: 3
Views: 1711

Re: .223/5.56 Completed can- Build with pics

Yeah, I'm not going to use the 41xx steel again, only because of how it machine's. My understanding is that even annealed 41xx is stronger than the 300 series stainless that is fairly common in cans. I really like working with 17-4, both the 1150 and 900 tempers. I even like titanium now that I have...
by mr fixit
Wed Jul 24, 2019 2:07 pm
Forum: Silencersmithing Forum
Topic: 30 cal Suppressor Build - Forum 1
Replies: 65
Views: 7913

Re: 30 cal Suppressor Build - Forum 1

How are you going to hold it while you center drill? I think the way you want to do it is much harder and may not even work. I used the same 17-4 drops from Ebay. Put the bar all the way against the spindle through the 3 jaw chuck and tighten up the chuck. You'll probably have only about 3 inches ex...
by mr fixit
Wed Jul 24, 2019 12:18 pm
Forum: Silencersmithing Forum
Topic: .223/5.56 Completed can- Build with pics
Replies: 3
Views: 1711

.223/5.56 Completed can- Build with pics

Here's a can I finished a while back and just never posted. This is a direct thread can with 4130 tube and 4140 baffles and end caps. Spacers are Titanium between baffles. The can was welded Direct thread end cap has integrated muzzle brake. I tried to copy one from here, I think Sampson's. Both end...
by mr fixit
Wed Jul 24, 2019 11:40 am
Forum: Silencersmithing Forum
Topic: 30 cal Suppressor Build - Forum 1
Replies: 65
Views: 7913

Re: 30 cal Suppressor Build - Forum 1

Did you get a steady rest with the late? That's how I make my 1.5" cones on my 12" Logan. Chuck it in the jaws, then set the steady rest so you have about 3-4 inches sticking out past it. Bore, then profile the inside of the cone, then profile the outside. I bore the inside by setting the compound a...