AR Positional POI Shift Test

Veracity · Jan 26, 2025

AXMC said:
I'm also curious why they would notch the top rail at the upper to handrail transition...unless it's part of how the barrel nut is torqued, it seems like an unnecessary weak spot.

~~LMT has the continuous picatinny patent. Companies add or delete something~~ Duplicated post

PBWalsh · Jan 27, 2025

Ernest 5.56 said:
Titanium barrel nut they say

I meant HOW its torqued on. I don't see any external screws or something with the photos I've seen.

Ernest 5.56 · Jan 27, 2025

PBWalsh said:
I meant HOW its torqued on. I don't see any external screws or something with the photos I've seen.

I did see a smallish hole on the bottom of the handguard

noobinacan · Jan 28, 2025

^ great thread. Do you have a URX4 to try ?

Jsp556 · Jan 28, 2025

PBWalsh said:
I meant HOW its torqued on. I don't see any external screws or something with the photos I've seen.

These shipped with the megalithic uppers and could be purchased separately for a while.

I’d assume the ICON uppers will use something similar.

Jsp556 · Jan 28, 2025

Ernest 5.56 said:
I did see a smallish hole on the bottom of the handguard

The MML, Semi monolithic, upper has a hole underneath to verify that the barrel is fully seated.
I can get you a picture this evening if you’d like.

Eyesquared · Jan 29, 2025

noobinacan said:
^ great thread. Do you have a URX4 to try ?

For my upper with URX4 I see 0.5mil shift going from bipod to barricade.

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