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Old December 24, 2019, 23:06   #1
pinkyluvsyou
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Threads inside muzzle?

New to M1 Garands, picked one up the other day and it has about 3/4 -1 inch of threads on the inside of the barrel at the very top. Is this normal and if so whats it for. Thanks
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Old December 25, 2019, 11:03   #2
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Is it threads or is it counterbored? Also, is it really the barrel you are looking at or is there a blank firing adapter installed on the end of the barrel?
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Old December 25, 2019, 11:32   #3
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Pic of muzzle

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Old December 25, 2019, 12:23   #4
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Holy Makel der Andy. I have heard of barrels like a sewerpipe, but never seen one threaded like a waterpipe.
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Old December 25, 2019, 12:40   #5
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I would love to see what this looks like, but the photo is not working for me here???
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Old December 25, 2019, 13:06   #6
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Right click on thumbnail and then click view image.
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Old December 25, 2019, 13:09   #7
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Is it threads or is it counterbored? Also, is it really the barrel you are looking at or is there a blank firing adapter installed on the end of the barrel?
That would be my bet as well. Some hollyweird film studios and purveyors of guns for film have had some sloppy smithy's and a backyard conversion for BFA use would not be unheard of. Saw a lot of gew98 rifles that had chambers reamed out for M1909 blanks - marked fox studios as well. A lot of the gew98 rifles that came out of that Arkansas National guard armory sale 15 + years ago had their chambers crudely modified for M1909 blanks.
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Old December 25, 2019, 13:11   #8
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Right click on thumbnail and then click view image.
Thanks Art. I've seen that same "broken link" icon a gazillion times in posts and never knew that trick. Merry Christmas brother and thanks for that "gift"


Back to the subject at hand, WOW. I cannot imagine what or why that was done???
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Old December 25, 2019, 13:18   #9
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My windows must be out dated. I right click and only thing in the bunch near that is "show picture" ...and still have the little black box with white X.
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Old December 25, 2019, 17:39   #10
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I know a bunch of 're-enactors' that use rifles like that so the blank adaptor cannot be seen.

I think it is BS and have told a number of them so, but like they said it is their rifle. I think the seller SHOULD say something about it if he is selling it though.
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Old December 25, 2019, 17:49   #11
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Thanks

Have checked function and parts and everything seems to be right, next step is to get modified case and make sure nothing weird has been done to chamber or OAL.
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Old December 25, 2019, 17:50   #12
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markings

No odd marks seen anywhere that would suggest studio use
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Old December 25, 2019, 20:17   #13
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Years ago I saw some garands like that at North Store. Its for blank firing apapter
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Old December 26, 2019, 15:54   #14
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My guess would be it was a WW2 reinactor who wanted a BFA that didnt look conspicuous. If you watch The Big Red One you can see the muzzle adapters in there are modified figure 8 gas cylinder locks and very conspicuous. If you've never been to the WW2 ground and air reinactment in Reading PA every July you havent lived well. They fire hundreds, maybe thousands of blanks over the course of several days.

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Old December 26, 2019, 16:25   #15
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This is the most common BFA type for the Garand that doesn't alter the looks of the barrel by very much. It is my understanding that a bayonet will attach to the rifle without any modification.



I have seen a few VW and American Legion salute rifles with threaded bores and an hex set screw installed. The set screw was drilled to allow some gasses to escape and still direct flow to the gas system for proper operation.
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Old December 26, 2019, 17:31   #16
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Thanks Art. I've seen that same "broken link" icon a gazillion times in posts and never knew that trick. Merry Christmas brother and thanks for that "gift"


Back to the subject at hand, WOW. I cannot imagine what or why that was done???
Me either......Old dog new trick for me. Thanks Art.
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Old December 26, 2019, 17:42   #17
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Local VFW has garands for the Color Guard modded this way exactly as Tac describes
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Old December 26, 2019, 21:55   #18
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Found Information

Information found on most common blank firing adapters for M1, The last one on the page is whats been done to mine... Very good read..

http://www.90thidpg.us/Equipment/Art...BFA/index.html
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Old December 26, 2019, 23:24   #19
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Over the years I have seen a lot of what would have been beautiful collectors rifles that at some point were ruined when modified for parade rifle use. Many of these were likely modified when they were common as dirt and of little value or donated to a group with agreement they would be rendered inert or demilitirized before released to a VFW, ROTC group, military school, etc. Now we have plenty of companies making affordable parade rifles and some very ingenious blank firing adapters. Have seen them with actions completely welded and others where the bolts could still be cycled. Here is a website that has intrusions in reactivating a Springfield 1903-A3 Drill Rifle.

http://www.ktgunsmith.com/03A3.htm

Numerich sells a variety of military issue blank firing adapters and used to sell some aftermarket versions for reinactor use. When I was in ROTC and doing at least a monthly FTX we were a first year ROTC startup my freshman year and had almost nothing the cadets didn't buy for personal gear except for textbooks and training films for classes. The Reserve and Guard units we would borrow rifles from often didn't have blank firing adapters. The active Army Sergeant recruited me first quarter as his assistant when checking out, prepping and cleaning the weapons.

We would remove the flash hiders from each rifle and put a home brew blank adapter in. We used a tubing cutter to cut the heads off a bunch of rifle cases then punched out the primers. Would place the modified case head over the muzzle and screw the flash hiders back on with just enough torque they didn't fall off but not enough to hopefully ruin the crowns or first turn of threads on barrel. We would have either yellow or red strips of cloth we would use zip ties to attach then to end of barrel just behind the flash hider signifying the weapon was modified for blanks. This even worked with M60s but believe we had to modify flash hole size but that bit is hazy from many years passed and once we made our first set used them the two years I was in ROTC if had rifles and no blank adapters.

This was 1981-1984 and things were a lot less strict from my perspective of what we did as cadets then and see how things are done now. At end of our FTX we would remove or blank firing devices and replace the flash suppressors nice and snug. Can only imagine how bad it would have sucked for some Guard or Reserve member to have sent live rounds down the bore of one of our modified rifles if had missed removing our field modifications. First FTX we went on about half the cadets got a rubber training rifle and the rest just used a stick to simulate carrying and aiming rifles.

Second FTX I had a SP1 AR 15 which pulled from my trunk with bolt carrier group removed and stowed in my pack. Took the Sergeant about three minutes to realize I had a real rifle and not a training rifle, broom stick (some guys even hacked a rough looking rifle out of a 2"4" and painted it black) or tree limb. He was not overly upset when saw the BCG was removed but the regular Army Captain in charge of the program freaked out, ordered me to leave and stow the rifle in safe place then when returned spent the rest of the weekend doing push ups, pull ups and running in circles around the different squads as they learned to march.

Sergeant figured out I not only owned that full size A1 but a CAR 15 as well and punished me by making me his weapons assistant till I failed my physical when going from an MS2 and signing my contract to become an MS3 as had to give them some time to do last two years with OCS tabs and some financial support. Failed my physical and left the school to finish up close to home so able to work full time job as needed a career since was classified 4F and unable to enter the military as I intended.

Failing a hearing test kept me out as military was not caught up on paperwork President Carter signed to reduce military spending and Ronald Reagan's rebuilding of the military had not filtered down to ROTC level to give me an appeal option of first doctors classifying me as 4F though I was already bagging 14,000 foot peaks in the Rockies, climbing in the Wind Rivers, Tetons and Cascades thus humping a 90 pound ruck up hill across glaciers and rotten rock was something I considered fun. My hearing was off in a time when every older soldier I knew was about stone deaf if had ever been in combat and some even from just training as hearing protection was not common. We didn't even get ear plugs on major FTXs where artillery simulators and flash bangs were going off all around us while we sent blanks spraying and judges decided if a squad or fire team completed an objective and estimated casualties based on obervation of how each cadet conducted themselves.

Segway over but there are several smaller companies making low profile blank adapters for reinactors and film industry. Check out this blank adapter for the M1 Garand.

https://www.warsendshop.com/search?t...apters&submit=



This company makes a blank firing adapter that works a lot like our modified case heads.

https://www.cdvs.us/product/2235-56-...firing-device/



How would you like to have forgotten to remove that thing before inserting a live magazine into your nice Form 4 transferable M16 and flipping the selector to full auto? I understand the safety reason for blank adapters used in military training being big gawky things generally painted red, yellow or orange. Operator knows he has a blank adapter so doesn't insert live ammo and everyone from team mates to Cadre know that a weapon has device installed from 50 yards or more away. Only issue is we would be doing a class on camouflage, use of cover and concealment trying to sneak up on each other in groups from fire team, squad and sometimes platoon size movements and all had a big square hunk of yellow or red steel on the end of all weapons.

The blank adapters we used were obvious enough in size and mounting that they didn't have to look like a hunters safety vest when teaching camoflauge and concealment. That said have seen enough accidents and especially when large groups gather where some may have just written a check and be at their first reinactment and knowing for sure everyone had blank adapters installed so if dumb enough to slam a live magazine in then it's themselves most likely only one hurt rather than a half dozen guys out having a good time shot before it was realized someone was firing live ammo in the midst of several dozen men blazing away with blanks.

All that said I would bet that rifle was modified as it is to shoot blanks or live ammo from a single rifle. If a good machinist counterbored/back bored the end of the muzzle in manner left a nice crown, possibly better than crown was in then threaded rifle could actually pick up some accuracy due to removing a badly damaged crown or very pitted area right at muzzle end of bore. If I was into reinacting and had a trashed barrel for a rifle in which barrel swaps were easy would consider doing such to a barrel that would need cutting to get a good muzzle anyway if could be repaired at all. Sure someone has made and probably sells flash hiders with inside threads for screwing in a blank adapter. As good as some people are at mods along with how poorly some make modifications and all the people that fall in the middle would guess there are hundreds if not thousands of odd different mods to fire blanks in rifles.

It could also be someone's idea of a very aggressive gain twist barrel to spin heavy bullets up so fast they spin drift like a hoard of mad bees.
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Old January 16, 2020, 13:27   #20
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MGM auction Garands

Many years ago, MGM auctioned off a lot of their property. In their armory they had several M1s. They all had coarse threads inside the muzzle for allen screws. The screws were then drilled out until the gas was right to make the action function. They did the same thing with their M1 Carbines. I didn't bid on any as they would have needed new barrels and at the time they were not commonly available.

It was quite an auction. Wingless Dauntless dive bombers from WWII used as wind machines. A bomber-nosed Beechcraft(AT-11) parked in a hanger were some of the jewels. The "Rat Patrol" Jeeps and other vehicles were sold. They were pretty worn. All that is gone now or in the hands of private collectors. Ah, the memories!
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