The Lead & Steel LSQGB-625 .625" Nitride Steel gas block is precision CNC-machined from solid billet steel to deliver consistent performance on your AR platform. Its .625 inch internal diameter is carefully matched to the barrel’s thermal expansion characteristics, helping maintain a secure fit and reliable gas regulation over extended shooting sessions.

This low-profile steel gas block is well suited for range use, training, and general-purpose builds where durability and repeatable function matter. The nitride finish and black color complement modern AR components while resisting wear from regular handling and firing. Backed by Lead & Steel’s focus on thoughtful engineering and quality machining, the LSQGB-625 is a straightforward upgrade for builders who value reliability.

Key Features:

• Manufacturer: Lead & Steel
• Model: LSQGB-625
• Diameter: .625" internal
• Material: Steel
• Finish: Nitride
• Color: Black
• Type: Gas Block
• Weight: 0.105 lbs