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Harrington & Richardson
Overview
The Harrington & Richardson 635 9mm Complete Lower is a fully assembled lower receiver designed specifically for the AR-9 platform. Made from durable 7075-T6 aluminum and featuring a forged style, this lower is optimized for 9mm caliber builds, ensuring reliability and performance. With a standard trigger pin size of .154, it allows for compatibility with a wide range of aftermarket triggers, making it a versatile choice for builders focused on 9mm configurations.
Based on build data

Breek Arms Ar-15 Warhammer Mod2 Ambidextrous Charging Handle Black

Tacfire 10" Complete Upper Assembly 9mm 1:10, Black - BU-9MM-10

Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A

Faxon Firearms 9mm Ar-15 Bolt Carrier Group for Glock or Colt Magazines - Nitride

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

FailZero AR9, 9mm BCG, Black Nitride
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Breek Arms Ar-15 Warhammer Mod2 Ambidextrous Charging Handle Black | 3 | |
| Tacfire 10" Complete Upper Assembly 9mm 1:10, Black - BU-9MM-10 | 3 | |
| Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A | 2 | |
| Faxon Firearms 9mm Ar-15 Bolt Carrier Group for Glock or Colt Magazines - Nitride | 2 | |
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 2 | |
| FailZero AR9, 9mm BCG, Black Nitride | 1 |
| Platform | Percentage |
|---|---|
| AR-9 | 100% |
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