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F1 Firearms BDR-15 3G Reaper Build Kit 14.3″ H7M

SKUBDR-15-3G-H7M-14-Reaper-P CategoryF1 Firearms Rifles and Pistols
$1400.00
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About this product

The F1 Firearms BDR-15 3G Reaper Build Kit 14.3″ H7M provides components for an AR-15 build. This kit is designed for performance, using 7075-T6 aluminum for its billet receiver set. The barrel is nitride-treated.

The receiver set, machined from 7075-T6 aluminum, offers a different construction than forged receivers. The kit includes a 14.3″ 4150 CMV barrel, which has a proprietary nitride and cryo treatment. A mid-length gas system is part of this barrel configuration. The billet upper and lower receivers feature an enhanced magwell and a threaded bolt catch pin. A 15″ M-LOK handguard is included, with anti-rotation QD mounts. This handguard is designed to fit suppressors up to 1.75″ in diameter. An enhanced single-stage trigger is provided, with a pull weight of 4.5lbs. The H7M bolt carrier group features a Carpenter 158 bolt and a high-pressure tested gas key. This build kit is compatible with Mil-spec AR-15 parts, though some fitting may be necessary. Assembly requires an armorer’s wrench and a vise block, which are not included.

Specifications

  • Product Type: AR-15 Build Kit
  • Material: 7075-T6 aluminum receivers, 4150 CMV steel barrel
  • Manufacturing: CNC machined billet, button-rifled barrel
  • Finish Type: Type III hardcoat anodized, nitride barrel
  • Hardness: HRC 70+ on bolt, 45-50 on barrel extension
  • Compatibility: Mil-spec AR-15 parts (some fitting may be required)
  • Installation: Requires armorer’s wrench, vise block (tools not included)
  • Weight: 6.8 lbs complete (without optic)
  • Dimensions: 32.5″ overall length with stock extended
  • Country of Origin: USA
  • Condition: New in factory packaging
  • SKU: F1-BDR15-3G-14H7M

Who it is for

This kit is for individuals looking to assemble an AR-15 from a set of components. It provides a foundation for a rifle build, with specific material and finish choices for the barrel and receivers. Firearms and serialized receivers ship to an FFL dealer.

Specs at a glance

F1 Firearms BDR-15 3G Reape… SPECS AT A GLANCE 3G WEIGHT
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by The F1 Firearms Team based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$1400.00
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