M49/57 cheap parts kits

[Zackeroni]

FYI ....Bowman has them on sale this week, also barrel for these kits are now $ 295....where was that guy who said he was gonna start making them....now is the time my dude....:silly

Lol yes I just saw this myself. I know a couple of machinists...I think I'll take them the torched barrel and see if they can make copies $295 for a 9" long barrel is EXPENSIVE!

 

[rentprop1]

Lol yes I just saw this myself. I know a couple of machinists...I think I'll take them the torched barrel and see if they can make copies $295 for a 9" long barrel is EXPENSIVE!

well, when you're the only game in town ??....LOL and I agree, thats a $ 150 barrel at best, honestly I kick myself for not buying those kits when they were $795 in a 4 pack last year. But I didn't want 4 of them, Couldn't find anyone else who wanted one. I figured with the complex cut up shroud and then a semi conversion who would be gobbling these up ??, now the price is up even higher and every Vendor seems to have them in that $350 range. Not sure who is buying these and why the price keeps going up?

I watched the video where he had a ton of these 49/57's coming in, and figured the price would eventually drop, then saw the barrel price and said hell with that, same with the Star Z70, but that looks like a complex barrel.

 

[rentprop1]

Bowman just ran these on sale again and I bit the bullet and grabbed one, so now I am in need of a barrel, I do have a 9mm blank laying around the shop somewhere, so Zacharoni, if you have a lead on someone who can turn me one based on the cut stubs, I'd like to speak with you...I'm an 07/02 and wanna get this rolling into a post sample

 

[Zackeroni]

Bowman just ran these on sale again and I bit the bullet and grabbed one, so now I am in need of a barrel, I do have a 9mm blank laying around the shop somewhere, so Zacharoni, if you have a lead on someone who can turn me one based on the cut stubs, I'd like to speak with you...I'm an 07/02 and wanna get this rolling into a post sample

Dang! I dont know why I don't get updates from this thread. I also received a Bowman barrel BUT if you pay attention to the barrel lugs, his aren't right. The lugs on the new barrel are maybe half the right depth/thickness and the barrel has a TON of axial play. I personally seem it unsafe to fire with that kind of clearance. Thankfully I'm lucky to have access to a machine shop and use what knowledge I have to make these lugs right. Good news is I just started renting a shop and 2 doors down from me is a small machine shop! On my next day off I plan to go makes friends with them

 

[Zackeroni]

Also, may I add, removing the barrel stub out of the compensator/end of the barrel shroud, it's threaded! I had absolutely zero luck unthreading it and ended up slowly drilling it out. I have to still figure out what thread it is so I can re-tap the end of the shroud.

 

[Strangeranger]

Measurements of the lugs on an original M49/57 barrel:

OD of lugs: 1.019" (25.9mm)
Thickness of lugs: 0.196" (5mm)
Length of lugs: .581" (14.75mm)
Breech face of barrel to rear face of lugs: 0.493" (12.5mm)

All measurements are taken with a vernier caliper so the third decimal place is ±.001"

EDIT:
Couldn't find my notes to confirm this but IIRC the thread on the muzzle end of the barrel is M14x1.25 ( 0.55 OD x approx. 20.3 TPI)

 

[Chipster574]

The Build Instructions for the M49/57 from Indianapolis Ordnance paragraph 5 says "remove the front portion by unscrewing it clockwise. It is a left handed thread"

Update - Looking at the barrel now... The very tip of the muzzle is right hand thread. The larger thread further down is left hand for sure.

 

[Strangeranger]

This is an extended barrel?
The thread at the muzzle is probably 1/2"-28NF for a muzzle device/suppressor
The LH thread partway down the barrel is what screws into the front support

 

[rentprop1]

Also, may I add, removing the barrel stub out of the compensator/end of the barrel shroud, it's threaded! I had absolutely zero luck unthreading it and ended up slowly drilling it out. I have to still figure out what thread it is so I can re-tap the end of the shroud.

I have had no luck as well removing that barrel portion from the compensator and dont wanna mess it up, I guess Im gonna have to drill mine its been soaking in Kroil for weeks and tried heat several times

Zackeroni...if you have a way to copy this barrel I would be more than willing to pay you for your time, I do have a 9mm barrel blank handy, just LMK