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Posted: 1/19/2015 12:05:27 PM EST
Looking to verify which mount needs to be used on my ar 15 w 1/2x28 threads. I am being told 3102-28. Not sure if 3102-28a is the same. And the guy at YHM wasn't that convincing.

Thanks

Bev
Link Posted: 1/19/2015 12:14:20 PM EST
Either will work. I think the A was just the revision from the ugly ribbed version to the newer style.
Link Posted: 1/19/2015 2:08:03 PM EST
You have several options...

1. YHM-4302-MB-28A (1/2-28 LT muzzle brake)
2. YHM-4302-28 (1/2-28 LT flash hider)
3. YHM-3102-28A (1/2-28 5.56 flash hider)
4. YHM-5M2-QD (1/2-28 5.56 muzzle brake)

The LT and 5.56 mounts are the same size, only the bore is different. For a 1/2-28 5.56 host, any of the four work just fine.
Link Posted: 1/19/2015 3:00:17 PM EST
[Last Edit: 1/19/2015 3:00:38 PM EST by thebev8604]
This is the info I was looking for. Thank you very much. Got a YHM mite and YHM LT phantom turned around in 3 months. Thanks NFA Trust!
Link Posted: 1/19/2015 6:12:16 PM EST
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Originally Posted By thebev8604:
This is the info I was looking for. Thank you very much. Got a YHM mite and YHM LT phantom turned around in 3 months. Thanks NFA Trust!
View Quote

This topic comes up every once in awhile. I took pics one day just to have them handy.

Here's a 5.56 FH and an LT FH, both threaded 1/2-28:



Notice they're the same...except for the bore:



As opposed to two LT mounts, one threaded 1/2-28 and the other 5/8-24...same bore, different thread pitch:



For my 5.56 hosts, I just buy whichever one I find the best deal on.
Link Posted: 1/20/2015 10:13:04 AM EST
YHM-3102-28A has been ordered!

Thank you for the help gents.

I had my cans in hand in 3 months. Due to the fast turn around, my 308 bolt gun is currently at the shop being fit to a new stock. I will post pics asap.

Bev
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