Quiet closing

[howl]

This monster bolt/faxon is especially difficult to close quietly. I'm thinking break in would do most of it, but this rig won't see high round count. (She doesn't shoot much.) This got me thinking that maybe removing the extractor o-ring or some other tweak might make getting the bolt home easier to manage, and thus easier to keep quiet.

There is no real difficulty operating the action. It's just more than usually tricky to ease the bolt home and get it fully seated. Using the bolt release or just slinging it home work like normal.

Any and all ideas, please.

[Six5x39]

hopefully it's not bolt or chamber issue and will loosen up . I noticed my grendel is somewhat loose side compare to other caliber like 223,300blk . but no issues cycling

[bj139]

Remove the extractor o-ring. I did on one of my bolts to test and it operates just fine.
The pin holding the extractor could be pushed out easily.

[PVBoom]

Remove the extractor o-ring. I did on one of my bolts to test and it operates just fine.
The pin holding the extractor could be pushed out easily.

That won't cause function issues?

[howl]

Teh interweb also suggests clipping a couple coils off the ejector spring. These are low cost techniques, so I think I might try them. I might also grab her gun when she's not looking and run a hundred rounds of steel case through it to maybe smooth something up.

[bj139]

That won't cause function issues?

I haven't had any extractor issues such as failure to eject.

I don't remember which bolt I removed the ring from but it was scoring brass pretty severely.

[LRRPF52]

I don't use O-rings around my extractor springs.

As long as the cyclic rate is tame, there is no need for it.

It's a band-aid for the highly over-gassed/suppressed 10.3" carbines SOCOM was having issues with.

A heavier buffer and correct gas port dims helped with that more.

You can also polish your extractor face, the angled part that slides over the case rim before snapping over the rim.

[mongoosesnipe]

i removed the oring from my bolt as the extractor was extra firm and have not had any issues with an ar15 if you are wanting quiet bolt closing your best bet is probably a side charger the bear creek side charger is pretty cheap 140 with bcg and looks to be a clone of the lar side charger which i have one of i like it because it deletes the rear charging handle which is superfluous on a side charger

[bj139]

i removed the oring from my bolt as the extractor was extra firm and have not had any issues with an ar15 if you are wanting quiet bolt closing your best bet is probably a side charger the bear creek side charger is pretty cheap 140 with bcg and looks to be a clone of the lar side charger which i have one of i like it because it deletes the rear charging handle which is superfluous on a side charger

I was playing with my BCA side charger with a fired case and had trouble getting it to snap over the case rim without pounding the charging handle.
I could pull the extractor open with my finger so I think it is the bolt where I removed the 0-ring.
I seem to remember using the forward assist on another receiver to close the bolt on a case and not having any problem.

[mongoosesnipe]

i was mostly talkng about holding the bolt handle to ride the bolt home if you are worried about bolt closing noise

[bj139]

i was mostly talkng about holding the bolt handle to ride the bolt home if you are worried about bolt closing noise

On a standard AR, you could just pull the charging handle back a little and then slowly let the bolt go forward. When it stops, press the forward assist a few times to seat the round.