Help! Where are 80% lower with Colt pattern 9mm lower?

[Mooner]

Update: 8/13/2025

Finally found 80% lower with Colt Mag.

Billet AR-9 80 Percent Lower Receiver - 80 Percent Lowers

Shop for a quality Colt type AR9 80% Lower Receiver for Sale. Get an AR-9 80 percent Lower that is precision CNC machined from billet aluminum in Oregon.

80lowers.com

____________________________________


Boys and g... well just boys, I'm jumping on Colt AR9 mag bandwagon, AR9 with Colt mag looks so sexy vs Glock mag.
Plus few more pros... manual arm is the same as AR15, LRBO is built into a mag and bolt catch, and it looks dead sexy.

Looking for 80% with a Colt pattern 9mm lower, only found one vender. Looks like I also have to buy internal parts separately, the total would be $185, and for that price, I might just get serialized lower $160 from Spike Tactical.

9mm 80% Colt Lower Receiver - Slim

80% 9mm Lower Receiver Stripped, Colt Compatible

www.smftactical.com

9mm Builders Kit

9mm Builders Kit, 9MM Parts, 9mm Builders Kit by SMF Tactical

www.smftactical.com

example of eye candy...

 

[Bobster]

PSA closed out their "colt-ish" 9mm lowers 5+? years ago for $40-$50 and I regret not getting one.

I ended up with an AR-9 that takes Glock mags. NO LRBHO. But it shoots good and I have S-loads of compatible mags.

I DID look at LRBHO models but thought the mechanisms were flimsy and probably still are...

 

[Mooner]

I DID look at LRBHO models but thought the mechanisms were flimsy and probably still are...

from what have read so far... Glock mag LRBO is questionable at best, even the advertised upper and lower have an issue locking back consistently. It gets worse when we mix different vendor lowers and uppers.

 

[Harold]

I built one of those about eight years ago or so and the straight blowback action was really rough on the hammer (and presumably on the hammer and trigger pins). I was seeing mechanical damage on the face of the hammer after only a few hundred rounds even though I was using a ramped bolt and the heaviest buffer I could find (although IIRC I was using generic parts of questionable quality). If I were to do it again I would probably try to use Colt OEM hammer and pins.

 

[brian]

I have a AR9 lower from 5D tactical and an Aero upper. Haven't had any issues with the L:RBHO yet. Will need to check for damage next time I have it out but it has performed fine - no failure to feed/extract, etc.

 

[PlasticGunner]

I realize that this is old post but this is where I've found them.

9mm Colt Lower Receiver, 80% - Retro

Wider Magwell, 9mm Retro Lower Receiver Milled to 80% by SMF Tactical, Made in the U.S.A.

www.smftactical.com

Available raw or black w/LRBHO.

 

[Racer88]

I realize that this is old post but this is where I've found them.

9mm Colt Lower Receiver, 80% - Retro

Wider Magwell, 9mm Retro Lower Receiver Milled to 80% by SMF Tactical, Made in the U.S.A.

www.smftactical.com

Available raw or black w/LRBHO.

Thanks for joining the forum and participating by posting! When you get a chance, please write up a quick “introduction” (or RE-introduction if you were a former MGB forum member) of yourself over in the Introduce Yourself! section. Tell us about yourself, your building experience, and how you found the forum.

Jump into other threads, too! Come on in... the water's fine!

 

[Mooner]

I realize that this is old post but this is where I've found them.

9mm Colt Lower Receiver, 80% - Retro

Wider Magwell, 9mm Retro Lower Receiver Milled to 80% by SMF Tactical, Made in the U.S.A.

www.smftactical.com

Available raw or black w/LRBHO.

Yup, that is the only site I found, and i listed on my 1st post.

End up getting standard 80% lower with Colt mag adopter, which came out much cheaper

Eye candy:

 

[MikedaddyH]

I have a Rock River lower that takes Colt Mags. You could look there.

 

[Mooner]

Do they have 80% lower?

 

[MikedaddyH]

If you're still looking...
Try New Frontier in Las Vegas they have Glock lowers for AR's.
Also Quentin Defense in Chandler AZ has AR lowers in the 9/40 pattern for Glock mags.
Sorry, no Colt mag lowers.

 

[MikedaddyH]

Ok PSA has a Colt pattern AR9 lower for $239.99

 

[Mooner]

Finally found 80% lower with Colt Mag.

Billet AR-9 80 Percent Lower Receiver - 80 Percent Lowers

Shop for a quality Colt type AR9 80% Lower Receiver for Sale. Get an AR-9 80 percent Lower that is precision CNC machined from billet aluminum in Oregon.

80lowers.com

 

[Bobster]

I remember about 10? years ago PSA was blowing out their Colt-pattern lowers for around $40! PSA-brand, not H&R...

Ok PSA has a Colt pattern AR9 lower for $239.99

 

[bkbrno]

Finally found 80% lower with Colt Mag.

Billet AR-9 80 Percent Lower Receiver - 80 Percent Lowers

Shop for a quality Colt type AR9 80% Lower Receiver for Sale. Get an AR-9 80 percent Lower that is precision CNC machined from billet aluminum in Oregon.

80lowers.com

I finished a lower from there. Pretty descent quality. The Light Weight option looks really good, that's what I used. The basic style is slab sided and looks like everything else.

They can be a little on the pricey side but they are well machined.

 

[TheRedman]

Update: 8/13/2025

Finally found 80% lower with Colt Mag.

Billet AR-9 80 Percent Lower Receiver - 80 Percent Lowers

Shop for a quality Colt type AR9 80% Lower Receiver for Sale. Get an AR-9 80 percent Lower that is precision CNC machined from billet aluminum in Oregon.

80lowers.com

____________________________________


Boys and g... well just boys, I'm jumping on Colt AR9 mag bandwagon, AR9 with Colt mag looks so sexy vs Glock mag.
Plus few more pros... manual arm is the same as AR15, LRBO is built into a mag and bolt catch, and it looks dead sexy.

Looking for 80% with a Colt pattern 9mm lower, only found one vender. Looks like I also have to buy internal parts separately, the total would be $185, and for that price, I might just get serialized lower $160 from Spike Tactical.

9mm 80% Colt Lower Receiver - Slim

80% 9mm Lower Receiver Stripped, Colt Compatible

www.smftactical.com

9mm Builders Kit

9mm Builders Kit, 9MM Parts, 9mm Builders Kit by SMF Tactical

www.smftactical.com

example of eye candy...
View attachment 15436View attachment 15433View attachment 15434

I made an account just to comment on this post.. I actually ordered an 80 lower from that company (80lowers.com) just before you posted the August update. Turns out that website is a scam and does not ever deliver, nor communicate about any sales. Beware. It has taken 4 months but my cc company was able to issue a full reimbursement.

Shoot straight - The Redman

 

[Racer88]

I made an account just to comment on this post.. I actually ordered an 80 lower from that company (80lowers.com) just before you posted the August update. Turns out that website is a scam and does not ever deliver, nor communicate about any sales. Beware. It has taken 4 months but my cc company was able to issue a full reimbursement.

Shoot straight - The Redman

Thanks for the "heads up."

Thanks for joining the forum and participating by posting! When you get a chance, please write up a quick “introduction” (or RE-introduction if you were a former MGB forum member) of yourself over in the Introduce Yourself! section. Tell us about yourself, your building experience, and how you found the forum.

Jump into other threads, too! Come on in... the water's fine!

 

[bkbrno]

I made an account just to comment on this post.. I actually ordered an 80 lower from that company (80lowers.com) just before you posted the August update. Turns out that website is a scam and does not ever deliver, nor communicate about any sales. Beware. It has taken 4 months but my cc company was able to issue a full reimbursement.

Shoot straight - The Redman

That's not good. I got one of their lowers a couple of years ago. It was several notches better than any 80% I have seen. Because I ordered from, I get emails on occasion. They went through a tough time last year-year and half ago. Machines broke down, machinist left for greener pastures, blah blah. They had almost nothing on their site for a long time. Last year, they sent out an email stating they were back.

They have some really nice looking, well machined lowers and matching uppers. It might be worth a call. No answer, move on. If they answer and claim they are shipping, it might be worth it to to give them a try if you can afford to lose a hundredish dollars. If that amount of money is dear to you, don't risk it. I have no recent transactions with them so I don't know what their current status is.