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Description

AR15 80% LOWER RECEIVER (CERRO FORGE) - SAFETY ENGRAVING OPTION - LIGHT BLEM

Don't forget to select 1 of the 28 different safety markings from the drop down menu. The safety engraving reference chart can be seen under the "CHART A" tab above.

Forged by Cerro, this 80 percent lower is not an FFL item and is classified by the ATF as a non-firearm. Made from 7075 T6 heat-treated aluminum, this lower features flared and broached magwells and is “finished in white”, tumbled and ready to be bead blasted before anodizing or cerakoting. All that’s required is machining of the trigger and the safety well before it’s a fully functional, mil-spec lower receiver. Click on the Magwell and Safety tabs to see some of the available engravings to choose from on your lower receiver.

Designed to work perfectly with our selection of upper receivers and other AR parts and build to withstand rugged use, this lower receiver allows you to fully customize your AR15 build easily and quickly. Review the lower’s specifications and shop today for the best pricing around.

These RTB 80% Lowers now come with a tension screw hole drilled and threaded for a 1/4"x28 set screw (set screw sold separately)

80% machined (just needs trigger and safety well machined)
7075 aluminum
T6 heat treated
Magwells are flared and broached
Cerro Forge (Key hole may or may not be machined off)

MPN#: 80RAW-1-BLEM3

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Compare prices for 80RAW-SERIAL-ENG-BLEM - BLEM AR-15 80% Lower Receiver - Machine Shop Buyout - Blem w/ Safety Engraving Option from all vendors

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$46.00
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Comments (26)

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So a "blem" 80% lower for $10 more than a finished Anderson? LOL...fools and their money.

BTW, not sure what "Socialism" has to do with not shipping something to certain states. "Socialism" vs capitalism are economic principles, neither one (typically) dictates *what* is sold, just *how.* Funny enough, this vendor seems to favor USPS....hate to break it to you those little white trucks are bought and paid for via "Socialism Baby."

1 vote
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These socialist blue states decide what guns or accessories are shipped to people in their states, holy shit you're clueless. State level restrictions can affect what firearms can be shipped to residents of that state, as individuals must comply with both federal and state laws when receiving a firearm, but...but its "economic principles" that decide what is sold... bahahahahaha!

Please note: We will not ship 80% blanks to the following states: NY, NJ, D.C., CT, HI, CA, MD, WA, DE, NV, IL and RI. Funny, don't see any red states.

The US Postal Service (USPS) recently reported a net loss of $9.5 billion for the fiscal year 2024. Socialism Baby!

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So now you are conflating "blue states," gun laws, and the completely unrelated concept of "socialism?" LOL, drunk again I see. No surprise there, "didos" and thunderbird is your breakfast most days, ain't it?

And until COVID and massive changes (from MAGots), the USPS was the only government agency that was completely non-taxpayer funded. "Socialism Baby!" Fun fact, until 2006 it regularly posted PROFITS, with only minor losses from time to time. But in 2006 a congressionally mandated prefunding requirement (also demanded by Bush) for retiree health benefits put a major, and insurmountable burden on the USPS forcing it into the negative year after year. Funny how republicans can ruin something that worked great for 200 years beforehand ;)

P.S. Can you pickup my mic, I think I dropped it.

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It only takes the mind of a 10 year old to figure out blue states are governed by libtards that make libtard laws. Are the anti 2nd Amendment candidates you vote for democrap socialists or Republicans? Are you trying to make the point that red states are the ones that want new gun laws? You're a barrel of laughs, clueless but funny as hell.

"But in 2006 a congressionally mandated prefunding requirement (also demanded by Bush) for retiree health benefits" Democraps were in charge of Congress for the next 6 years and in charge of the house in 2006 if this mandate was such a burden why didn't they change it or stop it...but but Bush. I can tell you why, it's nothing but another slush fund to pay for the socialism baby that your libtard offficials pass. You dropped your mic in the mud a long time ago, that's why you have nothing but muffled drivel.

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It seems his only bad judgement was choice in women. His peace through strength beliefs are right on par with the rest of the patriots, but I commend him for putting his ex-brother in law through the embarrassment.

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My MAGA ex-brother in law just one and he has designed a bunker buster theme he wants me to engrave for him with my laser engraver. I’m only doing it for him because I like the guy despite his bad judgement in politics.

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Please note: We will not ship 80% blanks to the following states: NY, NJ, D.C., CT, HI, CA, MD, WA, DE, NV, IL and RI. Socialism Baby

1 vote
2 votes

I got two of their Always Armed 80% lowers. Time to experiment with my new laser engraver. https://www.righttobear.com/always-armed-overrun-ar-15-80-lower-receiver-raw/?ref=3jbx1q5wj2...

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I've bought 5 cerro forge lowers (all had the keyhole marking) from different retailers last month and every single one has been out of spec at the front pivot and rear takedown pin holes. None of my aero uppers (standard and m4e1) will allow both pins in at the same time. If the front is in - the rear won't go in, if the rear is in -the front won't go in. Same result with my psa uppers and my ruger. Tried different pins and no go. Maybe I'm Bad Luck Jones, maybe they're putting out garbage lately. Just be prepared for a possible paperweight.

5 votes
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Does anyone know if the holes get drilled out at Cerro or does someone else do it?

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Sorry about your luck but thanks for the heads up. I was just about to pull the trigger on this deal. (Pun intended)

2 votes
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I don't see a way to add the safety engraving option? I see the chart but no option to add it.

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Capt. Hammer, Use ur ball peen Hammer with a punch and engrave it. 8-)) 8-))

1 vote
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Minimal bit per pass, shop vacuum each time, let the bit cool. I use a cutting oil, too. Really comes out well this way, just have lots of patience.

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Looks like a good buy. Minimum buy quantity is 3 three though.

3 votes
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I'd probably need the first 2 for practice anyway.

2 votes
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Run the router as fast as it can go, move slow and in minimal increments, and consider fewer pilot holes. It's easier than you think, but there are some tricks.

2 votes
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First and last runs are importants. Everything in between - hardly doubt you can do any damage even if you try. It is just easier to do when you do it slow - less kickback from the tool. I would worry more about getting tired and doing something stupid like picking a wrong bit when drilling a hole. Also as it takes like 2-3 hours to do one lower and a lot of cleaning work after this, just buy good 80% lowers. Do not buy blems unless you are building an arsenal of 20 the same rifles. If you spend 2-3 hours of your time, do it for something really nice.

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I've become a stickler for side wall finish, so all runs are important. That and bad kickbacks lead to broken bits. I'd love to give one of these a shot in a proper mill.

1 vote
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Thank you very much for the advice...

1 vote
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It’s a bit of an investment, but seriously consider using the 5D Tactical jig. I’ve used mine for 10 lowers altogether, and it runs beautifully every time.

Unfortunately, they were all lost in a tragic boating accident...

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I agree - been using the 5D Pro jig with great results. It does take 2.5 - 3 hours on average if you work methodically, taking off as little material as possible in each pass.

I'd also like to say that I have yet to do an "80% lower" that wasn't really a 74.3% lower: for example, every safety detente had to be drilled out to seat properly, and there are tricks to doing that correctly.

I also have a beef with the manufacturers who suggest using WD-40 as a machine tool lubricant. It is nasty, sticky stuff. Get a good water-based machining lubricant and apply it frequently from a spray bottle. It creates cleaner cuts, smaller chips, and helps hold the edge of your tool much longer.

And thank you to everyone who admitted knowing the guy with the faulty boat. I had to put all my lowers in a smelter to make a high quality aluminum hull for a friend whose boat apparently suffered repeated damage due to submerged rocks.

2 votes
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Dang tragic boating accidents they ruin everything

4 votes
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I don't know why guns are so attracted to boats, can't ever seem to get the life preserver on them.

4 votes
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This wins comment of the day, for sure.

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