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Noreen .223 Multi-Cal Billet Lower – Right Side Profile – Clean view of the finished black anodized lower showing selector markings and CNC-machined lines. Built from 6061-T6 aluminum and ready for your mil-spec parts kit. Click here to enlarge
Noreen .223 Multi-Cal Billet Lower – Left Side Profile – Alternate angle showing magwell, bolt catch area, and integrated trigger guard. Ideal for showcasing the full profile and finish quality. Click here to enlarge
.223 Billet Lowers – Rack View of Finished Receivers – Bulk photo of finished billet lowers lined up for inspection. Demonstrates Noreen's quality control and production consistency. Click here to enlarge
Noreen AR Lowers – Finish Options in Black, Raw, and FDE – Group shot of multiple Noreen lowers, showing anodized black, raw aluminum, and FDE (Flat Dark Earth) options. Useful for color comparisons. Click here to enlarge
Noreen Billet Lowers – Assembly Preview with Fire Control Parts – Lineup of lowers with trigger groups partially installed. Perfect to show compatibility with mil-spec lower parts kits. Click here to enlarge
.223 Multi-Cal Lower – In-Hand Detail of Anodized Finish – Close-up photo highlighting engraving depth, selector markings, and anodized surface. Great for showing craftsmanship and readiness. Click here to enlarge
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Noreen .223 Multi-Cal Billet Lower – Right Side Profile – Clean view of the finished black anodized lower showing selector markings and CNC-machined lines. Built from 6061-T6 aluminum and ready for your mil-spec parts kit. Noreen .223 Multi-Cal Billet Lower – Left Side Profile – Alternate angle showing magwell, bolt catch area, and integrated trigger guard. Ideal for showcasing the full profile and finish quality. .223 Billet Lowers – Rack View of Finished Receivers – Bulk photo of finished billet lowers lined up for inspection. Demonstrates Noreen's quality control and production consistency. Noreen AR Lowers – Finish Options in Black, Raw, and FDE – Group shot of multiple Noreen lowers, showing anodized black, raw aluminum, and FDE (Flat Dark Earth) options. Useful for color comparisons. Noreen Billet Lowers – Assembly Preview with Fire Control Parts – Lineup of lowers with trigger groups partially installed. Perfect to show compatibility with mil-spec lower parts kits. .223 Multi-Cal Lower – In-Hand Detail of Anodized Finish – Close-up photo highlighting engraving depth, selector markings, and anodized surface. Great for showing craftsmanship and readiness.

223 Multi-cal Billet Lower Receiver

$99.99
$99.99
$79.99
(You save $20.00)

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.

Full Description

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.

Current Stock: 5
Shipping Cost: Calculated at Checkout
Width: 9.25 (in)
Height: 1.75 (in)
Depth: 4.25 (in)

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