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Drontheim Build Works

Drontheim Build Works

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    • Complete Uppers
      • AR15 (300 Blackout)
      • AR15 (5.56)
      • AR10 (.308 WIN/7.62)
      • AR9 (9mm)
    • Components
      • Barrels
      • Bolt Carrier Groups
      • Charging Handles
      • Gas Blocks/Tubes
      • Handguards
      • Lower Parts Kits
      • Misc Parts Kits
      • Muzzle Devices
      • Safety Selector
      • Stocks
    • Magazines
      • Limited Capacity (Ban-State Compliant)
      • Standard Capacity
    • Maintenance
      • Cleaning Supplies
    • Receivers
      • Lower Receivers
      • Upper Receivers
    • Services
    • Drontheim Custom Shop
      • Custom Rifles
      • Custom Uppers
  • 🛒
  • .
Drontheim Build Works
  • Home
  • About
  • Contact
  • News
  • Shop
    • Complete Uppers
      • AR15 (300 Blackout)
      • AR15 (5.56)
      • AR10 (.308 WIN/7.62)
      • AR9 (9mm)
    • Components
      • Barrels
      • Bolt Carrier Groups
      • Charging Handles
      • Gas Blocks/Tubes
      • Handguards
      • Lower Parts Kits
      • Misc Parts Kits
      • Muzzle Devices
      • Safety Selector
      • Stocks
    • Magazines
      • Limited Capacity (Ban-State Compliant)
      • Standard Capacity
    • Maintenance
      • Cleaning Supplies
    • Receivers
      • Lower Receivers
      • Upper Receivers
    • Services
    • Drontheim Custom Shop
      • Custom Rifles
      • Custom Uppers
  • 🛒
  • .

Discover Drontheim

Top-Tier Products at an Affordable Price

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Drontheim Build Works

Match grade accuracy. • Service grade reliability.

Match Grade Barrels

All of our barrels are sourced from industry-leading manufacturers known for their accuracy and reliability.

Quality components

All of our components are manufactured meet Mil-Spec specifications and the highest quality standards.

100% Satisfaction

We stand by the reliability of our products and warranty against any defect in parts or labor.

Featuring our Complete Uppers

  • Out of stock

    Drontheim – Complete Upper, 10.5″ 300BLK 1:8 NP3-lined Match Barrel, 10″ M-LOK Handguard

    $398.99
  • Out of stock

    Drontheim – Complete Upper, 10.5″ 5.56 NATO 1:7 Barrel, 10″ M-LOK Handguard

    $398.99
  • Out of stock

    Drontheim – Complete Upper, 16″ 5.56 NATO 1:8 Barrel, 13.5″ M-LOK Handguard

    $398.99
  • Out of stock

    Drontheim – Complete Upper, 20″ .308 WIN 1:10 Barrel, 15″ M-LOK Handguard

    $579.99
  • Out of stock

    Drontheim – Complete Upper, no Forward Assist, 10.5″ 300BLK 1:8 NP3-lined Match Barrel, 10″ M-LOK Handguard

    Rated 5.00 out of 5
    $398.99
  • Out of stock

    Drontheim – Complete Upper, no Forward Assist, 10.5″ 5.56 NATO 1:7 Barrel, 10″ M-LOK Handguard

    $398.99
  • Out of stock

    Drontheim – Complete Upper, no Forward Assist, 16″ 5.56 NATO 1:8 Barrel, 13.5″ M-LOK Handguard

    $398.99
See all our product offerings

We Take Pride in the Quality of our Work

Top rated products

  • Drontheim - Complete Upper, no Forward Assist, 10.5" 300BLK 1:8 NP3-lined Match Barrel, 10" M-LOK Handguard
    Rated 5.00 out of 5
    $398.99
  • Aero Precision S-One MLOK Handguard 9-inch Aero - AR15 ATLAS S-ONE M-LOK Handguard $120.99 – $167.99
    : $134.99 – $194.99 (you save: $14.00 – $32.00)

Product categories

  • Accessories
    • Slings
    • Optics
  • Complete Uppers
    • AR15 (300 Blackout)
    • AR15 (5.56)
    • AR10 (.308 WIN/7.62)
  • Components
    • Back-up Iron Sights
    • Buffer Assembly
    • Barrels
    • Bolt Carrier Groups
    • Charging Handles
    • Gas Blocks/Tubes
    • Handguards
    • Lower Parts Kits
    • Misc Parts Kits
    • Miscellaneous Lower Parts
    • Miscellaneous Upper Parts
    • Muzzle Devices
    • Safety Selector
    • Stocks
  • Receivers
    • Lower Receivers
    • Upper Receivers
  • Magazines
    • Limited Capacity (Ban-State Compliant)
    • Standard Capacity
  • Maintenance
    • Cleaning Supplies
  • Services
  • Drontheim Custom Shop
    • Custom Rifles

Drontheim Build Works © 2020 | All rights reserved. | Privacy Policy | Terms and Conditions

Federal Requirements for Shipping Firearms

This is a controlled item and requires shipping to an authorized and valid Federal Firearms License (FFL) holder.

If you have a copy of the FFL, please email it to [email protected].

If you do not have a copy of the FFL but you do have the dealer’s email address, please add it in the comments field at checkout. It may help us acquire a copy of the FFL and get your order shipped out more quickly.

Federal law requires that you be 21 years or age or older to purchase a stripped receiver or frame. If a frame or receiver can only be made into a long gun (rifle or shotgun), it is still a frame or receiver not a handgun or long gun. However, they still are “firearms” by definition, and subject to the same GCA limitations as any other firearms. See Section 921(a)(3)(b). 18 U.S.C. Section 922(b)(1) makes it unlawful for a licensee to sell any firearm other than a shotgun or rifle to any person under the age of 21.

There will be a 30% restocking fee for all controlled items returned due to a failed background check or a denied underage purchase.