BN 80% AR-15 QUAD Rifle Build Kit - $300 ^

$300 Bare Necessities Builder's Grade Complete AR-15 Rifle Build Kit with Quad Rail Handguard

Start your AR-15 build with the $300 Bare Necessities Builder’s Grade Complete AR-15 Rifle Build Kit, featuring a black anodized 80% lower receiver with pre-engraved Fire / Safe markings. This kit includes a complete 16” upper receiver, a Mil-Spec M4 stock kit, and a complete lower parts kit (LPK), providing high-quality components for those assembling their own rifle. The **80% lower receiver is not a firearm** and requires additional machining to be functional. Check your local and state laws before purchasing.


Included Components:

Builder's Grade Complete 16" 5.56 Upper Receiver | A2 | 15" Quad M-LOK | BCG & CH:

**This Complete Upper Receiver Ships FULLY ASSEMBLED**
The Complete 16 inch M-LOK upper receiver comes with a 15 inch quad free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.

Black Anodized 80% Lower Receiver with Fire / Safe Safety Markings

• Forged 7075-T6 aluminum, precision-machined for a high-strength foundation.
• Black anodized finish with pre-engraved Fire / Safe safety markings.
• Mil-Spec compatible design for seamless component compatibility.
• Unfinished (requires additional milling and machining to be made functional).

Tactical Sport 6-Position M4 Stock Kit

• Impact-resistant polymer construction with Mil-Spec diameter extension tube made from aircraft-grade aluminum.
• Complete assembly includes action spring, buffer assembly, tear-drop ring, and castle nut.

Bare Necessities Complete AR-15 Lower Parts Kit (LPK)

• Includes all necessary components to complete your lower receiver, ensuring proper fit and function.

Custom Engraving Available for 80% Lower Receiver

RTB now offers anodized 80% lower receivers pre-engraved with your choice of serial number and manufacturer information. We engrave to a depth of .01" and provide the following customizable fields:

• Name of Person or Entity: (Personal name, trust name, etc.)
• City & State
• Model: (Customizable with a default prefix of "MOD:")
• Caliber: (Default is "MULTI" but can be customized, prefix is "CAL:")
• Serial Number: (Must be unique; default prefix is "S/N:")

Note: If you do not want the default prefixes engraved, please specify in the "Order Comments" section at checkout.

Legal Disclaimer: This 80% lower receiver is not considered a firearm and does not require an FFL for purchase. However, additional machining is required to make it functional. Ensure compliance with federal, state, and local laws before completing your build.

Please Note: We will not ship 80% blanks to the following states: NY, NJ, D.C., CT, HI, CA, MD, NV, WA, OR, DE, IL, and RI. This is not legal advice; check your local and state laws before ordering.


***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***