ODIN Works Low-Profile Gas Block — .750", Black Nitride, Carbon Steel | Model GB75 | UPC 856205005032

Rock-Solid Gas Control in a Handguard-Friendly Profile

The ODIN Works Low-Profile Gas Block (.750") is engineered to deliver reliable, repeatable gas regulation in a compact footprint that tucks cleanly under most free-float handguards. Precision-machined from carbon steel and finished in black nitride for superior hardness and corrosion resistance, the GB75 provides a stable interface between your gas tube and barrel—the heart of a dependable direct-impingement AR.

Whether you’re building a lightweight carbine, a precision SPR, or a hard-use duty rifle, the GB75’s low-drag exterior, rugged materials, and proven set-screw retention make it a smart upgrade over mil-spec front sight bases and bulky clamp-ons.

Key Features at a Glance

• Gas Journal Size: .750"—the most common AR-15/AR-10 barrel diameter

• Material: Carbon steel for strength and longevity

• Finish: Black nitride (QPQ) for wear resistance and corrosion protection

• Profile: Low-profile to fit beneath most modern free-float M-LOK®/KeyMod® handguards

• Retention: Secure set-screw design for positive alignment (barrel dimples recommended)

• Compatibility: Works with carbine, mid, intermediate, and rifle-length gas systems

• Platform: AR-15 / AR-10 pattern direct-impingement builds (not for piston systems)

• Model / UPC: GB75 / 856205005032

Typical packaging includes the gas block, set screws, and a gas tube roll pin. Always check your product label for exact contents.

Why Builders Choose the ODIN Works GB75

Under-Handguard Fit

The low-profile body is designed to disappear under slim handguards, providing plenty of clearance for accessories, heat shields, and sling QD sockets while maintaining a straight, obstruction-free gas path.

Long-Term Durability

Black nitride diffuses into the steel, creating a hard, slick surface that resists rust, carbon adhesion, and tool wear—ideal for high round counts, weather exposure, and suppressed shooting.

Consistent Alignment

The set-screw interface grips the barrel securely. Pair with a dimpled barrel for repeatable alignment, excellent gas seal, and fewer POI shifts during long strings.

Across-the-Board Compatibility

From .223/5.56 to .308/6.5/6mm and beyond, if your barrel uses a .750" gas journal, the GB75 integrates cleanly with your DI gas system and standard gas tubes.

Ideal Use Cases

• Precision & SPR Builds: Free-float accuracy with a sleek, hidden gas solution

• Lightweight Carbines: Minimal footprint without sacrificing reliability

• Duty/Training Rifles: Hardened finish and strong retention for heavy use

• Suppressed Setups: Robust sealing and nitride finish stand up to added fouling

Installation Tips (Best Practices)

1. Verify Clear: Ensure the firearm is unloaded and the chamber is empty.

2. Prep & Test Fit: Degrease barrel journal and gas block bore; confirm smooth fit.

3. Align the Port: Slide the block onto the journal, align the gas port with the barrel port, and seat the gas tube (roll pin included on most packages).

4. Secure the Block: Tighten set screws evenly onto a dimpled journal using non-permanent threadlocker, then torque to manufacturer guidance.

5. Function Check: Confirm proper cycling with your chosen ammo (and suppressor, if used). Re-inspect after your first range session.

If you’re new to AR assembly, a qualified armorer can dimple the barrel and verify alignment for optimal reliability.

Technical Specifications (GB75)

• Brand: ODIN Works

• Product: Low-Profile Gas Block

• Gas Journal Diameter: .750 inch

• Material: Carbon steel

• Finish: Black nitride (QPQ)

• Retention: Set-screw

• System Compatibility: DI gas systems (carbine to rifle-length)

• Platform: AR-15 / AR-10 (with .750" journal)

• Model Number: GB75

• UPC: 856205005032

Dimensions and hardware style may vary slightly by production lot. Follow the latest ODIN Works instructions for torque and thread treatment.

Frequently Asked Questions

Q: Will this fit under my handguard?
A: The low-profile body is designed to fit under most free-float handguards. If your handguard is extremely slim or has internal features, check its inner diameter.

Q: Is this for piston or direct-impingement?
A: The GB75 is for direct-impingement systems. It’s not intended for piston conversions.

Q: Do I need to dimple my barrel?
A: Recommended. Dimpling provides a positive index for the set screws, improving alignment and staying power under heat.

Q: Which gas tube works with this?
A: Standard AR gas tubes (carbine, mid, intermediate, rifle) that match your barrel’s gas system length.

SEO-Rich Highlights & Buyer Keywords

• ODIN Works .750 low-profile gas block

• Black nitride carbon steel gas block for AR-15/AR-10

• Set-screw retention, free-float handguard compatible

• Model GB75, UPC 856205005032

• Works with carbine/mid/rifle gas lengths, direct-impingement systems

Meta Title (SEO)

ODIN Works Low-Profile Gas Block .750 — Black Nitride Carbon Steel | GB75

Meta Description (SEO)

Upgrade your AR with the ODIN Works Low-Profile Gas Block (.750). Carbon steel construction, black nitride finish, set-screw retention, and under-handguard fit. Model GB75, UPC 856205005032.

Structured Data (Product Schema JSON-LD)

json
Copy code
{
  "@context": "https://schema.org/",
  "@type": "Product",
  "name": "ODIN Works Low-Profile Gas Block .750 (GB75)",
  "sku": "GB75",
  "gtin12": "856205005032",
  "brand": {
    "@type": "Brand",
    "name": "ODIN Works"
  },
  "category": "Sporting Goods > Outdoor Recreation > Shooting > Gun Parts",
  "description": "Low-profile .750-inch gas block from ODIN Works, made of carbon steel with a black nitride finish. Set-screw retention and under-handguard fit for AR-15/AR-10 direct-impingement builds.",
  "additionalProperty": [
    { "@type": "PropertyValue", "name": "Gas Journal Diameter", "value": ".750 inch" },
    { "@type": "PropertyValue", "name": "Material", "value": "Carbon steel" },
    { "@type": "PropertyValue", "name": "Finish", "value": "Black nitride (QPQ)" },
    { "@type": "PropertyValue", "name": "Retention", "value": "Set-screw" },
    { "@type": "PropertyValue", "name": "Compatibility", "value": "AR-15/AR-10 DI gas systems" }
  ]
}

Responsible Use Reminder

After any gas system work, verify alignment, inspect for leaks or cycling issues, and confirm reliable operation with your chosen ammo (and suppressor, if used). Re-check fasteners after heat cycles and periodic cleaning.

The End