Don’t let the simplicity of a gas block’s function fool you, it is possible to make a bad one. Gas blocks must handle high gas pressures and extreme heat so using sub-par materials is out of the question. They also need to be machined to exacting standards, otherwise you run the risk of driving yourself bat-shit crazy because every roll pin you try to use ends up mushroomed and bent all to hell or worse yet, causes excessive leaks or blockages in the gas system.
The Dirty Bird Industries .625 Low Profile Steel Gas Block is the answer to all of these potential problems. Precision machined from 4140 Steel with a jet black Nitride finish, this gas block includes 2 Knurled Cup Point Hex Head Set Screws and a Stainless Steel Roll Pin.
You have Dirty Bird’s word that this gas block is machined to spec, has a uniform Black Nitride finish and includes a roll pin that is perfectly paired to give you an easy install and secure fit.
- .625 Diameter
- 4140 Steel construction
- Black Nitride Finish
- Includes Stainless Roll Pin
- 2 Knurled Cup Point Hex Head Set Screws
Backed by Dirty Bird Industries’ Limited Lifetime Warranty
Dirty Bird Industries — Premium AR-15 and AR-10 Components, Built to Last.
Designed for builders who demand uncompromising quality, reliable performance, and accessible pricing without the premium markups common from larger brands.
Founded by Builders, Built to Last
Founded in 2015 by brothers Jay and Dustin Pitcher in a Bakersfield, California garage, Dirty Bird Industries started as a family-owned operation specializing in custom Cerakote finishes and high-quality AR parts. Building on experience from its sister site, AR15Discounts.com, Dirty Bird Industries has grown into a nationwide company with a dedicated team focused on American-made gear that shooters trust.
American-Made Quality and Precision
Through strategic partnerships with leading domestic manufacturers, Dirty Bird Industries sources and develops components using advanced CNC machining, rigorous testing, and mil-spec standards. By managing larger volumes, the company delivers proven, high-end materials and precision engineering at fair prices that meet the high standards set for its own builds.
Proven Components for Serious Builds
Standout offerings include precision-forged 7075-T6 upper and lower receivers, enhanced black nitride bolt carrier groups, single-stage nickel Teflon triggers, free-float M-LOK handguards, complete upper assemblies, and comprehensive lower parts kits. These products create a cohesive selection for everything from custom builds to high-performance rifles nationwide, supported by batch inspections, mil-spec compliance, and ongoing innovations.
Zero Risk Guarantee Program
For total confidence, Dirty Bird Industries backs eligible parts and accessories with its Zero Risk Guarantee Program. This includes free shipping on orders over $50, package protection up to $5,000, lifetime free returns with full refunds within 45 days or store credit after, and expert support. As passionate shooters, the team at Dirty Bird Industries stands behind every product because the company builds, tests, and uses them too, providing authentic value and dependable gear.

