ADM lower + DD upper

[DangerDave]

Does anyone have a custom AR with an ADM UIC lower and a DD M4A1 upper?

If you do, please describe the performance, advantages, disadvantages, etc.

 

[LRRPF52]

I have the ADM lower and test-fit it with most of my stripped/new uppers.

It fits well with a Cerro Forge (Keyhole forge code) upper.

The DDs I’ve seen lately have splintered-A forge codes, which come from Anchor Harvey.

I’ve generally seen square forge code uppers to be looser, though it depends on the machine shop who finishes them.

I went with a non-forward assist upper for mine.

Fit/feel/finish looks fine since I had the ADM lower Cerakoted FDE to match the upper.

Advantages to the ADM lower are:

* Ambi bolt hold open and release that is very intuitive
* Funneled magazine well for ease of reloads

Disadvantage to the ADM lower is it’s a little heavier if I recall, so not the best lower if you’re looking to shave ounces on an ultralight build. Others would say price as well.

 

[LRRPF52]

The ADM is my favorite lower receiver design so far though, and I’ve been eyeball-deep into ARs since the 1980s.

I don’t have much beef with a standard lower though.

 

[Genesis1984]

The ADM is my favorite lower receiver design so far though, and I’ve been eyeball-deep into ARs since the 1980s.

I don’t have much beef with a standard lower though.

The adm is a trash ass stolen griffin design. They can keep that stupid ass paddle. Lwrc, lmt both better ambi lowers.

 

[Jsp556]

The adm is a trash ass stolen griffin design. They can keep that stupid ass paddle. Lwrc, lmt both better ambi lowers.

I think Griffin copies more shit than any other mfg out there.

Never seen any threads on here or other forums about broken ADM or Seekins right side bolt catch/releases.

 

[Black max]

The adm is a trash ass stolen griffin design. They can keep that stupid ass paddle. Lwrc, lmt both better ambi lowers.

You have it backwards fanboy. ADM Had their lowers way before griffin even had an FFL.

 

[Asiparks]

I have LMT and LWRC ambi lowers and I like my POF better....
ADM before Griffin.

 

[bfoosh006]

I thought Griffin and ADM "made / designed" the lower together... but ADM never paid Griffin for the work ?

https://www.ar15.com/forums/AR-15/-...eceivers/124-782550/?page=1&anc=bottom#bottom

I don't know all the specific's... and respect both companies... but ?

And Griffin Arm. podcast...