M1Sales service and turn-around question

[Fudmottin]

Asking for 5/8-24 is what I did because I saw all the 30 cal cans were available in that pitch. Also got a thread protector.

I went with Paladin Machine though, not M1S or SSK.

[avnut]

Originally Posted by mooster1223

Can we all assume that you ordered a 300/221 barrel from them? If you did and you were expecting 1/2 28 then you are the EXACT reason that they do this. If they sent it out threaded 1/2 28 and you took your standard .22 can and threaded it on the end, bingo bango!!!

1/2 28 IS STANDARD for .22 cal.

I did order the barrel from M1S.I installed the stripped barrel,checked headspace and completely assembled the upper.Even if I was foolish enough to not check it,it wouldn't have mattered in my case.My stock 1/2x28 flashider measures .332 id.
PS:I am a former Class 2 manufacturer

[Pitt300]

My understanding from M1S is that they are using AAC's drawing for 5/8x24 as their standard thread pattern on 300-221 unless you ask for something else.
I sent AAC's drawings to them.

[Fudmottin]

It's very cool of AAC to have all their threading standards available on Silencer Talk. Good public service.

[mooster1223]

Originally Posted by avnut

I did order the barrel from M1S.I installed the stripped barrel,checked headspace and completely assembled the upper.Even if I was foolish enough to not check it,it wouldn't have mattered in my case.My stock 1/2x28 flashider measures .332 id.
PS:I am a former Class 2 manufacturer

The flash hider is not the problem. If you were to suppress the barrel and mistakenly threaded a 22 cal can on the end, that's when it would have hurt. They TRY and make things fool proof, but the harder they work at it, the more foolish some people become.

Not picking on ya, I just wanted to point out that they thread them different for a reason.

[mooster1223]

Originally Posted by Pitt300

My understanding from M1S is that they are using AAC's drawing for 5/8x24 as their standard thread pattern on 300-221 unless you ask for something else.
I sent AAC's drawings to them.

Their "standard" is 1/2 36 for the 300-221. If you request 5/8 24, they use AAC's guideline. My blackout flashhider went right on.

[TCCrewchief76]

M1S charges an extra $50 to thread 5/8-24 according to the lady I talked to there. I don't understand why they would standardize on 1/2-36; that's pretty thin on the end after the threading.

Kevin