For the life of me I can not figure out the differences in these two uppers.
Anyone see what I’m missing? Please and thank you.
https://palmettostatearmory.com/psa-gen4-4-9mm-5-lightweight-m-lok-railed-upper-with-bcg-ch4.html
For the life of me I can not figure out the differences in these two uppers.
Anyone see what I’m missing? Please and thank you.
https://palmettostatearmory.com/psa-gen4-4-9mm-5-lightweight-m-lok-railed-upper-with-bcg-ch4.html
Twist rate and thread pitch on the barrel is all I can see on a quick scan, and obviously pesos.
twist rate is the same, 1 in 10". But the thread is different so the can is going to be different. They were done in different lots I’m guessing so got priced at different times. maybe?
Damn I swear the first time I read it one was 1 in 9" They do both say 1 in 10" now though.
I read a few of the Q+A’s and several mention that only a few suppressors will fit in this hand guard. They are probably different to allow more options of the few that will fit. I’m still going with made at different times so priced at different times.
Behind the flash can one appears to have extra space or at least you can see through it.
Where is the other is solid.
I’m guessing the diameter is different to allow for a suppressor???
Yeah, I think that’s a lighting / angle thing with the slots.
@sean.psa takes the pics.
Hmm, I didnt take these photos. This listing was before my time here.
5165450004 - https://palmettostatearmory.com/psa-gen4-4-9mm-5-lightweight-m-lok-railed-upper-with-bcg-ch-5165450004.html
This listing is about to be pulled down now that I am seeing it. It is using an old muzzle thread pitch of 1/2-36. We have since changed to 1/2-28 on our 9mm platform.

Dayum, when @sean.psa says he’s taking it down, he takes it down!
If you want to attach anything you better. Anything with an oddball thread pitch will be impossible to find accessories for.