Mossberg .223 MVP Barrel Nut Removal/Replacement

[Bully]

My buddy has a Mossberg MVP in .223 and wants the barrel threaded for a brake. I'm wondering if anyone makes a replacement barrel nut for the rifle? I believe is .875 x 28 or 27 or some such. I can't seem to find a replacement and he's messed up the nut with a pipe wrench.

Thanks for any help.

 

[55fairlane]

Bully,

You have a lathe, make a nut for it. Get ya a piece of "stress proof" and make a new nut for it.
Bore it, Do your I.D. threading,(if needed) part it off, chuck up a dummy shaft, thread it, screw the nut on to it, and finish up the machining. Just got to keep everything parallel (true/flat/square)

 

[Riesel]

I would really double check those barrel thread dimensions. I believe it is 1" X 20. Very close to Savage. Using that pipe wrench does kind of give meaning to gun plumber

 

[Shawnba67]

I have made a nut for myself once. I internal threaded it, and faced the rear of it true. tgen turned a sacrificial shouldered tennon screwed nut into that and turned outside to diameter and bored the recess at front.
Having said that,
WATCH EBAY!

 

[Bully]

I would really double check those barrel thread dimensions. I believe it is 1" X 20. Very close to Savage. Using that pipe wrench does kind of give meaning to gun plumber

This is the .223, not the 308. It's a mini action. I'll, of course, check everything once I get to his place to see it.

 

[Pyscodog]

Have you tried calling Mossberg and see if they might sell you a new barrel nut?

I just read a post that said PTG sold a Mossberg barrel nut. Might be worth a call.

 

[Bully]

Have you tried calling Mossberg and see if they might sell you a new barrel nut?

I just read a post that said PTG sold a Mossberg barrel nut. Might be worth a call.

He’s going to call today.

 

[Ggmac]

I would really double check those barrel thread dimensions. I believe it is 1" X 20. Very close to Savage. Using that pipe wrench does kind of give meaning to gun plumber

Mossberg is an odd duck . The 223 sized actions have smaller threads than the 1-20 found on the ATR and other 308 cartridge sizes . I think the magnums have a larger thread still but can not verify

 

[Bully]

He put calipers on the barrel. Looks like OD is 1”. So it may be 1x20. I will confirm when I have time to look at it.

 

[GrocMax]

Unless they changed it, MVP 223 is 7/8x28 class 2 on a 1.4" long tenon, barrel is 1" under the nut. I know this because I've made 3 barrels from contoured blanks. PTG makes a nut in CM or SS.

I believe the MVP 308 is the same as small shank Savage with a slightly different threaded length, but check, this may be wrong. People have claimed they used a Savage prefit.

 

[Bully]

Unless they changed it, MVP 223 is 7/8x28 class 2 on a 1.4" long tenon, barrel is 1" under the nut. I know this because I've made 3 barrels from contoured blanks. PTG makes a nut in CM or SS.

I believe the MVP 308 is the same as small shank Savage with a slightly different threaded length, but check, this may be wrong. People have claimed they used a Savage prefit.

Thank you!

 

[GrocMax]

BTW the Jard drop in trigger (for 4x4/MVP/Patriot) is pretty good for a varmint style setup. I definitely like the 12 oz.

 

[GrocMax]

The tricky part of this process is making a jig to locate the recoil lug properly during assembly, or do the machining to pin it ala Remmy, Sav etc. With the PTG nut you'll need to make a special tool like a 12 pt socket that fits well, cut off the drive end so the barrel can pass thru, weld a bar on the sides. Off the top of my head socket size is 27mm or 1 1/16.