Geissele Ambidextrous Lower! 2020

[Duffy]

You can add FCD/SOLGW to the list for 2020.

[Defaultmp3]

What if I want to lock the bolt back without dropping the magazine?

When would you want to do that and still need the time benefits of ambi? Genuinely curious.

I personally find the combined action to be faster when clearing malfunctions (which my time as a FoF roleplayers was extensive, as no one told me that Sims are best run with a dry gun). I like the manual of arms on my AX556 more than I do on my MARS-H.

[jpmuscle]

You can add FCD/SOLGW to the list for 2020.

Go on.....


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[justin_247]

What if I want to lock the bolt back without dropping the magazine?

Then you need to get another kind of ambi lower...

However, in what instance would you need this capability? I'm curious, as well. I can't think of an example.

[FromMyColdDeadHand]

Fixed mag?


The LMT ambi option is about a $400 premium over their standard lower. Who has the ambi with the lowest delta to a standard lower? That is what I want to see next.

The older I get the less I seem to need ambi, and the more guns I'd need to upgrade to stay consistent...

[Defaultmp3]

The LMT ambi option is about a $400 premium over their standard lower. Who has the ambi with the lowest delta to a standard lower? That is what I want to see next.

Street price on a stripped MARS-L is around 270 USD. Not cheap, but not as exorbitant a mark up as 400 USD. I believe ADM is also around that price, while Radian and MVB have a higher price at around 330 USD. LWRC does not sell stripped lowers.

[JediGuy]

You can add FCD/SOLGW to the list for 2020.

This is interesting...

For the record, I have nothing against Radian or their lower. They were the first ambi lower I knew about, but ended up with the LMT first; and once I really looked at it, I liked the LMT design more. I am not making the argument that Radian’s lower is not good or that their specific function might not itself have benefits. But if I list “truly ambidextrous” lowers, they aren’t on the list. Obviously everyone does not have to agree.

[montrala]

I am ignorant on HK, and I assume they do not make their mowers available separate from a complete firearm.

Only as spare part, but generally you can use ambi parts from HK416A5/MR223A3 and put them into regular AR15 lower with minimal gunsmithing involved (you just need to cut slot for right side slide catch lever). However HK ambi upper and lower have some additional protrusions, to protect left side magazine release and both sides of bolt catch for accidental activation (for example buy bumping on gear while rifle is left on sling).

[JediGuy]

Thanks, Montrala.

Despite my pushing back a bit when Roger from FCD pointed out the concern with “enhanced” mag release buttons a while back, I’ve reconsidered his (and others’) wisdom. The protective ridges on the MARS-L lower is one reason I like them.

[Duffy]

I don't remember a push back lol

We discovered this during EMR (through hole mag release button) and EMR-C (blind hole mag release button) development. Even back when I was still at BAD, I didn't want a mag release button that would stick out of its protective fence. Development continued when I started FCD, and measured the "ramp" part of the mag catch, the part that engages the magazine's mag catch cutout, it's only 0.05 tall.

From the beginning, we put warning language on EMR-C's product description that its taller profile will stick out of the fence on 223 lowers, EMR-C is best used on 308 lowers where its taller profile does not protrude over a 308 lower's mag release fence. Folks continue to buy them for 223 lowers, so we moved EMR-C to the 308 AR section to discourage that. Folks like the continuous serrations look of the EMR-C, but looks should never override functions.

EMR (through hole) doesn't protrude over the mag release fence to be an accidental/unintended mag drop risk.

More on my thoughts here: https://www.forwardcontrolsdesign.co...n_ep_69-1.html