[Other Gun] LMT MARS-L Stripped Ambi Lower Receiver - $273.60 with code SAKAMOTO, + $12.50 shipping

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Almost_average80@reddit

Solid deal. I always check Rooftop first when I’m looking for something. After watching the owner bend over backwards for his customers for years, he deserves the business.

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Oso_De_Negocios@reddit

I kinda want to get this and use it for a repatriated M16 kit from Southeast Asia.

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RunHoliday8800@reddit

This or the Radian ADAC lower?

Also, Rooftop is amazing 🙌🏻

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sk8surf@reddit

Hi I have both. The adac is heavier, I prefer the lmt. You do you boo-boo

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I’ve had both and I prefer the aesthetics and functionality of the LMT. Radians do look cool, but they seem “off” unless you’re using a matching upper. I also prefer the ambi bolt hold open/release on the LMT.

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Kryptic_Anthology@reddit

I can't speak for LMT, but I have the ADAC and it's awesome. However, the ADAC is cerakoted and can easily be stripped vs the LMT is anodized like most other firearms.

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Wander-in-Jalalabad@reddit

Is this lower considered as low shelf? Compatible with super safety?

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LinechargeII@reddit

They're high shelf, high enough that if you were to use a HK MR556A4 upper you have to shave off a bit from the rear lug of the upper to get it to fit with the lower

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Randyd718@reddit

ive never heard this terminology before. is there another mars ambi lower that isnt high shelf? how do you know what it fits on??

im looking at one of these to fit with my current 16" BCM and potentially another brand of upper once i change to 11.5"

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LinechargeII@reddit

BCM should fit fine with normal M4 style upper. BCM Mk2 uppers don't fit due to the right hand bolt paddle on the MARS lower being in the way though. VLTOR MURS have the same issue.

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AldoTheApache3@reddit

Most common low shelf lower is the centurion one. Ambi bolt release and controls really aren’t that great. I’ve got this lower and it looks cool, but I end up going for the left side release anyways.

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WIClovis@reddit

False. I run this exact lower on a HK416 with no modifications needed.

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LinechargeII@reddit

https://www.reddit.com/r/HecklerKoch/comments/1j713od/question_about_mr556a4_upper_fitment_with_a_lmt/

https://www.reddit.com/r/LewisMachineTool/comments/1mz1yiy/mr556a4_upper_on_mars_lower/

https://www.reddit.com/r/HecklerKoch/comments/1ila2f7/fitment_issue_no_primer_strike_mr556_a4_11_upper/

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hitemlow@reddit

Low shelf 😮‍💨

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hotleadburner@reddit

I thought low shelf was what everyone wanted? For super safety type behaviors. What's high shelf do that low doesn't?

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hitemlow@reddit

You don't want high or low shelf. You want mil-spec (full cut/M-16 cut).

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hotleadburner@reddit

Ah, I thought mil-spec was high. Same question, why?

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hitemlow@reddit

High cut is something Colt cooked up to prevent DIAS and Lightning Links from working in their ARs.

Low cut is from lazy manufacturers who don't want to spare the extra 2 minutes on the CNC to give the end user the most room for parts and assembly.

Mil-spec gives you the maximum amount of room for parts and assembly, while also making cleaning easier. You have the ability to add larger parts and have the maximum amount of parts compatability. Furthermore, ~~when~~ if the NFA is overturned, it only requires 2 small holes to add FA functionality, no milling required like the other layouts.

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Randyd718@reddit

what brands offer a milspec ambi lower?

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hitemlow@reddit

Griffin for one

LWRC, SoLGW, Centurion, and ADM. Sadly, if they don't list it in the item description, you've got to just scan the pictures. And they're not always the same for all variations of the lower.

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Randyd718@reddit

What do you mean scan the pictures? For the words milspec etched into the lower?

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hitemlow@reddit

https://old.reddit.com/r/gundeals/comments/1mfaofg/partsaero_precision_m4e1_pro_lower_receiver_black/n6g32zi/

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greatthebob38@reddit

Does rooftop have any other coupons available? I've got a centurion barrel that I've been eying for a while.

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iFightForOurRights@reddit

SQUIDWARD for 30% off these items

SAKAMOTO for 20% off these items

HEISENBERG for 15% off "nearly site-wide".

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Go_Blue_@reddit (OP)

15% nearly sitewide for the weekend with code HEISENBERG

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greatthebob38@reddit

Yep, that will do it.

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CatfishBandit90210@reddit

pewpew

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yeoldtallywhacker@reddit

I have a dd non-ambi lower but for some reason I’ve been wanting a lmt. Is it really worth “upgrading” ?

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acb1499@reddit

Spend $80 and get the Hk ambi bolt catch, it’s pretty good. You’ll have to cut your DD lower though

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HummingBored1@reddit

It's an adjustment to get used to using a new manual of arms. I use griffin and adm because theyre patterned the same. I'd say bolt lock and bolt release are the biggest convenience upgrade. A bad lever does a similar job but has some slop.

Also, teaching new shooters who are left handed is nice.

I have a couple Spear LTs and an MPX and at least between sig and Griffin/adm i like the latter best. I'm sure someone has posted some direct comparisons for the ambi options.

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