AR-15 Upper Parts

Dirty Bird AR-15 Stripped Upper Receiver Builders know that not all mil-spec forged upper receivers are created equal. Sub-par forgings suffer from pitting and structural defects, poor anodizing can result in a purplish or chalky finish that...

Dirty Bird AR-15 SMRS Handguard - Slim M-LOK Rail System V3 The SMRS (Slim M-LOK Rail System) V3 by Dirty Bird Industries is a high quality and feature packed M-LOK handguard designed for AR-15 platform rifles and pistols. When designing this...

Dirty Bird AR-15 SMRS Handguard - Slim M-LOK Rail System V2 The SMRS (Slim M-LOK Rail System) V2 by Dirty Bird Industries is a high quality and feature packed M-LOK handguard designed for AR-15 platform rifles and pistols. When designing this...

Dirty Bird AR-15 ASAL Free Float Quad Rail The Dirty Bird Free Float Quad Rail is a no-nonsense American Made rail system designed for versatility and simplicity. It features a monolithic top rail and is precision machined from 6061-T6 aluminum...

Aero Precision ATLAS S-ONE Free Float M-LOK Handguard The ATLAS S-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the S-ONE line of handguards are designed with size and weight in mind, providing the...

Dirty Bird AR-15 2-Piece Drop-In Quad Rail The Dirty Bird AR-15 2-Piece Drop-In Quad Rail is a 2-piece, non-free floating upgrade that installs in seconds for your AR-15. The Dirty Bird 2-Piece Quad rail makes use of the rifle's classic, mil-spec...

Free Float M-LOK Handguard Versatility and Durability in a Slim, American-Made Design The Free Float M-LOK Handguard is the ultimate rail system for shooters who demand functionality, strength, and customization. Designed with a monolithic top rail and...