View Full Version : M-79 parts WTB
I'm working on restoring an old Springfield Armory M-79, and am looking for any internal small parts. Drop me a PM if you have anything around. I know most can be bought from J&T but they are a bit on the costly side. Figured there might be some floating around in some old armorer's kit bag, that I could provide a good home for. Be a good project for post-op rehab... :) GROG
Edited to add:
The 79 I have is a registered destructive device, class III. Thanks TR!
The Reaper
03-22-2008, 18:12
I would assume that you are complying with all Federal and state laws in this build, and the M-79 is NFA compliant.
TR
100%
Already have an M-203 registered Destrctive Device, thanks Bro. ;)
She's up, and running. Fired her first two rounds today (ALS Short Range smokes) http://s119.photobucket.com/albums/o134/grog18b/?action=view¤t=M79Firstfiring07-12-08.flv
I had to make a locking lug for the barrel, out of aluminum U channel, but, hey, it works! Just a bit of re-finishing to do, and I can take some close-up photos. GROG
Peregrino
07-13-2008, 12:40
Congratulations. I've always had a soft spot for M-79s myself (usually a "lightly bruised" soft spot ;)). Now you need to win the lottery so you can afford to shoot the good stuff.
Congratulations. I've always had a soft spot for M-79s myself (usually a "lightly bruised" soft spot ;)). Now you need to win the lottery so you can afford to shoot the good stuff.
Same here, I would not mind owning one too. We called them blooper guns.
Photos would be nice. Thanks in advance.
H.
I'll post a few photos when I get the new stock set in and on. I had a problem seating the old stock I had, and I want it to be in A1 condition when photographed. I'll also include a few with my old 203 with KA stand-alone stock. I was considering sending the 79 to Lauer for a good tiger stripe duracoating. My 40 cal AR upper and 203 have a duracoating I applied myself, the tigerstripe seems to be a lot more complicated a pattern. GROG
I do reloads for the 40mm, and also have a selection of adapters for them. I have 10ga, 12ga, 20ga, 16ga, 410, and 26.5mm for those European flares and smokes. I also have a one that fires 10 22cal rounds at once. (Beehive) Really fun thing to shoot and reload for. For anyone interested in the 40mm, and with mods permission, I can post a link to my site here, or pm it.
tom kelly
07-24-2008, 20:18
I'll post a few photos when I get the new stock set in and on. I had a problem seating the old stock I had, and I want it to be in A1 condition when photographed. I'll also include a few with my old 203 with KA stand-alone stock. I was considering sending the 79 to Lauer for a good tiger stripe duracoating. My 40 cal AR upper and 203 have a duracoating I applied myself, the tigerstripe seems to be a lot more complicated a pattern. GROG
I do reloads for the 40mm, and also have a selection of adapters for them. I have 10ga, 12ga, 20ga, 16ga, 410, and 26.5mm for those European flares and smokes. I also have a one that fires 10 22cal rounds at once. (Beehive) Really fun thing to shoot and reload for. For anyone interested in the 40mm, and with mods permission, I can post a link to my site here, or pm it.
When you reload the M-79 rounds do they arm at 3 meters or 13 meters? Just curious? Regard's, tom kelly
When you reload the M-79 rounds do they arm at 3 meters or 13 meters? Just curious? Regard's, tom kelly
I'm going to go out on a limb here and say that the reloads of which he speaks are probably Inert Projectiles. Anything else becomes cost prohibitive and unreliable/dangerous for all but the most wealthy/skilled individuals.
Good times,
Blake
Since you asked... ;)
The 781 practice are reloadable, the 576 buckshot are reloadable, I also have a patent on flashbang/stingball 40mm rounds that I reload, as well as comercially sold wood baton, rubber baton, smokes and flares. I use resin molded plastic, and make my own 576 carriers, that can be loaded with flechettes or #4 buckshot. I'm working on a sabot type carrier for flechettes at the present time, and have designed a few rounds for ALS Technologies. The casings made by CTS, ALS, MK Ballistic systems, and Def Tec can be easily reloaded, as well as the M-212 casings. As far as the HE type rounds, the casings can't be reloaded, but you can register a 407, and make it into a 406 HE, as long as you can produce RDX. Destiny Densley (Small Arms Review author on 40mm articles) has done just that. I prefer to reload the resin molded rounds, where I can produce rounds that look like and function like the real military pyrotechnic rounds.
It's a hobby... :D
Oh, and it's 2.4 -3 meters for the 381 and 382, 13.71 meters for the 433, to 14 meters for the 406 and 397 OCTOL.
The Reaper
07-25-2008, 08:23
Since you asked... ;)
The 781 practice are reloadable, the 576 buckshot are reloadable, I also have a patent on flashbang/stingball 40mm rounds that I reload, as well as comercially sold wood baton, rubber baton, smokes and flares. I use resin molded plastic, and make my own 576 carriers, that can be loaded with flechettes or #4 buckshot. I'm working on a sabot type carrier for flechettes at the present time, and have designed a few rounds for ALS Technologies. The casings made by CTS, ALS, MK Ballistic systems, and Def Tec can be easily reloaded, as well as the M-212 casings. As far as the HE type rounds, the casings can't be reloaded, but you can register a 407, and make it into a 406 HE, as long as you can produce RDX. Destiny Densley (Small Arms Review author on 40mm articles) has done just that. I prefer to reload the resin molded rounds, where I can produce rounds that look like and function like the real military pyrotechnic rounds.
It's a hobby... :D
Oh, and it's 2.4 -3 meters for the 381 and 382, 13.71 meters for the 433, to 14 meters for the 406 and 397 OCTOL.
I thought that the military 40mm rounds used a "high-low" pressure system with a small chamber inside the case that contained the initial ignition and allowed the pressure to build till it ruptured ports and vented into the main body of the case, dropping the pressure significantly?
Since the ports are no longer sealed, how do you handle the initial ignition of the propellant and the lack of controlled venting into the main body of the cartridge? Does the chamber pressure seem to be stable?
TR
TR, the M-118 and M-169 casings do use the high-low pressure system, and the casings are a bugger to try to reload, but possible with modification. If you cover the ventholes with tape, wrapping it around the side of the high pressure chamber, then pour resin plastic into the casing until it just covers the level of those holes (no higher) it will hold the pressure in there until the pressure builds enough to push the plastic from around the holes, launching your projectiles. The primers can be drilled out carefully, 2-3 grains of bullseye pistol powder added through the primer hole, and a new primer pressed into place. I use Remington 1 1/2 small pistol as the 203 firing pins are weaker than the 79s. I don't like to use those M-118 casings, as I build replica rounds also, and have a limited supply of them. I use the M-212 nylon casings to reload the 781 practice rounds, which use a simple 38BLP blank. The blue plastic nosecones you can buy by the 600 count from a guy in Ohio. (I still have not worked my way through the first batch of 600 I bought 4 years ago.) Big Sky surplus sells the zinc pusher plugs for them, as well as the casings and nosecones, but I have a few suppliers here and there I can get them cheaper.
I mainly reload the aluminum Def Tec casings, which use a 38 short colt casing, which is easy to reload. The MK Ballistic systems casings use a steel plug that holds a small pistol primer, press fit into the rear of the casing. 4 grains of Bullseye pistol powder can launch a .5lb projo 300-400 meters. Those are the easiest to reload. They don't build up the 25,000 psi the military casings do in their high pressure chamber, but they still throw those projectiles out there.
I prefer the smokeless casings for reloading, but there are also guys that use the Mk-19 casings, with black powder, and lathed down to fit the 203. As long as you don't use smokeless in them, they are safe to reload that way. All you do is lathe the side of the casing down to fit, open the primer hole to use a 209 shotshell primer, fill with 1tsp of fffg black powder, cover the interior ventholes with tape, and they work like a charm. Make a hell of a bang, but like I said I stick with the smokeless casings. I don't like cleaning black powder gunk out of my barrels. Here is a photo of the 576 rounds I reloaded. I made the caps in orange, so I can find them in the grass of my range. They work very well in the Def Tec casings.: The larger orange caps on the right in the photo are for a different type of buckshot round. The pink silicone mold in the photo is a two piece mold for the small cap that holds the buckshot inside the carriers. Some here might recognize the 576 carriers...
Attached here, for those interested, is a photo of my personal collection of 40mm whatnot.
From top shelf L to R:
White star para flares, White Star clusters, Red and green star para flares,
Red, Yellow, and green smoke markers, (If anyone knows where I can find a violet...), CS Gas (you can just see the tops behind the explosives sign), you can see them better in the other photos, there is also a 407 practice HE, a couple 781 practice, and the 67 vintage buckshot visible in the other photos, one of my flashbang/stingball rounds, 40mm Def Tec CS, 40mm ALS OC muzzle blast dispersion with Def Tec 40mm barricade liquid CS behind that, the pink round is the 10/22cal adapter with the reloading rod inside, the od green anodized are various shotshell adapters from 10ga to 410, then some 37mm ferret CS barricade penetrators and a few CTS black and blue tipped rubber impact rounds, and some experimental flechette rounds on the end.
Next shelf from L to R:
A 9" 40mm barrel I'm re-crowning, a few HE replicas I made, The light green topped round is the flechette sabot I'm presently working on perfecting, with a few Mk-19 dummies in the rear (gold tipped), there is one flechette with a white carrier, then three smaller buckshot rounds behind that, another flashbang/stingball long range (tall dark green body with black tip), and an experimental line launching round behind that, then a few orange topped, and assorted experimental projectile rounds, an ALS flashbang trainer, some ALS pocket smokes and CS, and some other stuff.
Quite a collection? If anyone wants to know more about any of these rounds, drop me a line. GROG
Here is a photo of her so far. I used the fiberglass stock, as I did'nt want to ruin a good walnut one. The coating is SFL (the stuff we used to paint our 60 and 50 barrels with) I figured it'd protect the steel well, until I get it completly done and the new paint job: