Noreen .223 Multi-Cal Billet Lower Receiver – 100% Finished
Precision Machined | Milspec Compatible | Built in Montana
Get your next AR build started the right way with the Noreen .223 Multi-Cal Billet Lower Receiver. Fully machined and finished in-house by Noreen Firearms, this lower comes 100% complete and ready for your favorite parts kit — no additional machining required.
Made from 6061-T6 billet aluminum, this lower features an enlarged built-in trigger guard, type III hard anodized finish, and milspec compatibility with your favorite upper and lower parts.
✅ Ships to your FFL. You’ll receive tracking info via email once your transfer is confirmed.
⚙️ Specifications:
-
Manufacturing: CNC-Machined Billet
-
Chambering: .223 Multi-Cal (5.56 NATO compatible)
-
Material: 6061-T6 Aluminum
-
Finish: Type III black anodized
-
Trigger Guard: Enlarged, integrated
-
Weight: 9 oz.
-
Compatibility: Accepts milspec AR-15 parts kits and uppers
-
Fitment: Pairs perfectly with the Noreen Billet .223 Upper Receiver
? Why Choose Noreen:
-
100% finished billet lowers – no extra steps or milling
-
Enhanced ergonomics with built-in features
-
Made in Montana, USA
-
Compatible with a wide range of AR-15 platform parts
? Shipping Info:
Orders typically ship within 3–5 business days after valid FFL transfer information is received.
Customer Reviews Write a Review
Phenomenal
Noreen has really surprised me with there quality and even more with the price. I can honestly say I'm very happy with there upper and lower billet receiver, the fit is phenomenal, it feels extremely strong compared to my Troy and Odin billet uppers, Also I love how they shave down right around the barrel nut to have a more milspec thickness in that area making it work with just about any handguards, this is something I wish all manufacturers did and what ultimately led to to getting another upper as i wanted to run a specific handguard that I couldn't with my other 2 billet uppers. Thanks you Noreen
Outstanding.
As usual this is a wonderful Lower. The fit and finish are as always second to none. To date We have well over 30 builds from the Noreen Upper/Lower sets. There...
Stripped lower
Great quality and fast shipping
223 multi caliber billet lower
Great product quick shipping very close tolerances to mil spec specifications. Gap between upper and lower is non existence. Finish is an excellent. I'm very well pleased with the two lures and will be purchasing more in the future.
Noreen lower recievers
I have purchased 4 lowers in the last 2 months. 3 in AR 10 and 1 in AR15. All were a perfect fit. Machining was right on. Each one fit like a glove. All feed well...no problems with them at all.
556 and bn308
We only order Noreen receivers for our customers, you will not match the build quality, customer service or design at this price anywhere. It's Noreen or Nothing with Foxfire Finishes.
Lower
Great product love it.
Billet lower
Very good product
Great product
The lower is extremely well made at an excellent price
223 Multi-cal Billet Lower Receiver
Another satisfied purchase from Noreen. Good quality and fit. Thanks for a great product.
QUALITY at a value price
For not much more than common forged receivers this is a great product. I paired it with the Noreen Billet upper and they fit together perfectly. I somehow didn't notice when I ordered tat the upper is missing the forward assist and after going to the range with it I think it's time for a forward assist to go the way of the Edsel. This was the first upper I have assembled where the barrel was a SNUG fit! Well satisfied, break in groups running from .6 to MOA at 100 yards with 55 grainers and a less than perfect trigger. VERY HAPPY!
Best buy in a long time and its a billet!
My AR15 billet uppers arrived. I tried on one of your billet lowers which I bought at Brownells (because of the attractive price). The U/L lower fit is perfect. The overall quality is outstanding. The design is noble, professional and austere (in the good sense). I am delighted having received more than I expected. They are the best U/L set I bought in a long time and they are billets. The set price was also excellent! I hope to buy more. Thank you, thank you, thank you!
Blemished uppers are a bargain.
Purchased 5 of these, and all are finished with some tool marks present. Dimensionally correct, so they can be finished by me any way I want to do it.
Outstanding product!
Received three (3) of these and I have to say that they are of better quality than I expected for the price. If you are looking at getting a billet lower receiver, you should get these - they are dimensionally correct, have a great finish, and look super with the closed trigger guard.
