Knight's Armament stripped lowers coming soon

[Ryno12]

I don't have a trigger guard at all at this point. I don't even know if my lower is out of spec as it's still sealed. I'm curious as to what is out of spec on the affected lowers; size of the ear preventing install or hole location is off? Which would affect any trigger guard used.

This has been discussed ad nauseam in this thread & across other forums.
The problem is the length of the ears, not the hole location.

[556BlackRifle]

I don't have a trigger guard at all at this point. I don't even know if my lower is out of spec as it's still sealed. I'm curious as to what is out of spec on the affected lowers; size of the ear preventing install or hole location is off? Which would affect any trigger guard used.

People have posted that other vendor's trigger guards may work fine. No big deal unless you want to use a KAC trigger guard. Your choices are to; a) modify the lower by shortening the ears, b) modify the KAC trigger guard to accommodate the ears, c) contact KAC and they'll send you one that will work. I opted for c.

[Vegas]

This has been discussed ad nauseam in this thread & across other forums.
The problem is the length of the ears, not the hole location.

It would seem I missed the exact detail of what the issue was, hence my question. And I don't really read other forums.

People have posted that other vendor's trigger guards may work fine. No big deal unless you want to use a KAC trigger guard. Your choices are to; a) modify the lower by shortening the ears, b) modify the KAC trigger guard to accommodate the ears, c) contact KAC and they'll send you one that will work. I opted for c.

Thanks for the detail. Option C it is.

[556BlackRifle]

It would seem I missed the exact detail of what the issue was, hence my question. And I don't really read other forums.



Thanks for the detail. Option C it is.

I should also mention that not all lowers have this issue. I'm not sure what the SN range is but I think it's somewhere in this 70 page thread.

[themonk]

I wanted to update this thread incase someone is thinking of buying these lowers. Gen 3 30 round pmags do not drop free.

[jstalford]

I remember trying all my mags when I assembled it. They all dropped free IIRC. I will check again tonight if I get a chance.


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[the_1iviper]

i don't know how i got so lucky with my kac lower but i've had none of the reported issues with it

i just double checked mine and gen3 30 round windowed pmags drop free no problem

[jstalford]

Yep my trigger guard fit fine too.


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[3ACR_Scout]

I just tested the following magazines in mine, which is equipped with a Colt magazine release:

PMAG M3: dropped free (tested two)
PMAG M2 #1 (new OD green): top inch of the magazine repeatedly hung up in mag well
PMAG M2 #2 (new FDE): dropped free
Brownells USGI: dropped free
Tango Down ARC Mk 2: dropped free
Lancer AWM: initially completely hung up, but after repeated attempts, the sides of the metal feed lips seem to smooth out and it starts to drop easier; kind of wiggles around, sometimes gets hung up
USGI EPM (new, only fired once): completely hung up, won't drop
Old, old Thermold: dropped free, no issues!

Seems like my results were a bit inconsistent.

[themonk]

You gentlemen are lucky, I am on my 2nd replacement with no dice. Anyone in Northern VA that wants a discounted lower PM me.